2024

Charge-4e supercurrent in a two-dimensional InAs-Al superconductor-semiconductor heterostructure
Carlo Ciaccia, Roy Haller, Asbjørn C. C. Drachmann, Tyler Lindemann, Michael J. Manfra, Constantin Schrade & Christian Schönenberger
Communications Physics (2024) doi.org/10.1038/s42005-024-01531-x [PDF]

2023

Phase engineering of anomalous Josephson effect derived from Andreev molecules
Sadashige Matsuo, Takaya Imoto, Tomohiro Yokoyama, Yosuke Sato, Tyler Lindemann, Sergei Gronin, Geoffrey C. Gardner, Michael J. Manfra, and Seigo Tarucha
Science Advances (2023) doi.org/10.1126/sciadv.adj3 [PDF]

Phase-dependent Andreev molecules and superconducting gap closing in coherently-coupled Josephson junctions
Sadashige Matsuo, Takaya Imoto, Tomohiro Yokoyama, Yosuke Sato, Tyler Lindemann, Sergei Gronin, Geoffrey C. Gardner, Sho Nakosai, Yukio Tanaka, Michael J. Manfra & Seigo Tarucha
Nature Communications (2023) doi.org/10.1038/s41467-023-44111-3 [PDF]

Electronic g factor and tunable spin-orbit coupling in a gate-defined InSbAs quantum dot
S. Metti, C. Thomas, and M. J. Manfra
Physical Review B (2023) doi.org/10.1103/PhysRevB.108.235306 [PDF]

Phase Asymmetry of Andreev Spectra from Cooper-Pair Momentum
Abhishek Banerjee, Max Geier, Md Ahnaf Rahman, Candice Thomas, Tian Wang, Michael J. Manfra, Karsten Flensberg, and Charles M. Marcus
Physical Review Letters (2023) doi.org/10.1103/PhysRevLett.131.196301 [PDF]

Fabry-Pérot Interferometry at the ν = 2/5 Fractional Quantum Hall State
J. Nakamura, S. Liang, G. C. Gardner, and M. J. Manfra
Physical Review X (2023) doi.org/10.1103/PhysRevX.13.041012 [PDF]

Gate-tunable Josephson diode in proximitized InAs supercurrent interferometers
Carlo Ciaccia, Roy Haller, Asbjørn C. C. Drachmann, Tyler Lindemann, Michael J. Manfra, Constantin Schrade, and Christian Schönenberger
Physical Review Research (2023) doi.org/10.1103/PhysRevResearch.5.033131 [PDF]

Spin spectroscopy of a hybrid superconducting nanowire using side-coupled quantum dots
Alisa Danilenko, Andreas Pöschl, Deividas Sabonis, Vasileios Vlachodimitropoulos, Candice Thomas, Michael J. Manfra, and Charles M. Marcus
Physical Review B (2023) doi.org/10.1103/PhysRevB.108.054514 [PDF]

Triplet correlations in Cooper pair splitters realized in a two-dimensional electron gas
Qingzhen Wang, Sebastiaan L. D. ten Haaf, Ivan Kulesh, Di Xiao, Candice Thomas, Michael J. Manfra & Srijit Goswami
Nature Communications (2023) doi.org/10.1038/s41467-023-40551-z [PDF]

Josephson diode effect derived from short-range coherent coupling
Sadashige Matsuo, Takaya Imoto, Tomohiro Yokoyama, Yosuke Sato, Tyler Lindemann, Sergei Gronin, Geoffrey C. Gardner, Michael J. Manfra & Seigo Tarucha
Nature Physics (2023) doi.org/110.1038/s41567-023-02144-x [PDF]

Sign reversal of the Josephson inductance magnetochiral anisotropy and 0–π-like transitions in supercurrent diodes
A. Costa, C. Baumgartner, S. Reinhardt, J. Berger, S. Gronin, G. C. Gardner, T. Lindemann, M. J. Manfra, J. Fabian, D. Kochan, N. Paradiso & C. Strunk
Nature Nanotechnology (2023) doi.org/10.1038/s41565-023-01451-x [PDF]

Signatures of a topological phase transition in a planar Josephson junction
A. Banerjee, O. Lesser, M. A. Rahman, H.-R. Wang, M.-R. Li, A. Kringhøj, A. M. Whiticar, A. C. C. Drachmann, C. Thomas, T. Wang, M. J. Manfra, E. Berg, Y. Oreg, Ady Stern, and C. M. Marcus
Physical Review B (2023) doi.org/10.1103/PhysRevB.107.245304 [PDF]

InAs-Al hybrid devices passing the topological gap protocol
Morteza Aghaee et al. (Microsoft Quantum)
Incl. Geoff Gardner, Sergei Gronin, Ray Kallaher, Tyler Lindemann, Michael Manfra, Patrick Sohr, and Alex Webster
Physical Review B (2023) doi.org/10.1103/PhysRevB.107.245423 [PDF]

Mobility exceeding 100 000 cm2/V s in modulation-doped shallow InAs quantum wells coupled to epitaxial aluminum
Teng Zhang, Tyler Lindemann, Geoffrey C. Gardner, Sergei Gronin, Tailung Wu, and Michael J. Manfra
Physical Review Materials (2023) doi.org/10.1103/PhysRevMaterials.7.056201 [PDF]

Control of Andreev Bound States Using Superconducting Phase Texture
Abhishek Banerjee, Max Geier, M. Ahnaf Rahman, Daniel S. Sanchez, Candice Thomas, Tian Wang, Michael J. Manfra, Karsten Flensberg, and Charles M. Marcus
Physical Review Letters (2023) doi.org/10.1103/PhysRevLett.130.116203 [PDF]

Spin-relaxation mechanisms in InAs quantum well heterostructures
J. D. S. Witt, S. J. Pauka, G. C. Gardner, S. Gronin, T. Wang, C. Thomas, M. J. Manfra, D. J. Reilly, and M. C. Cassidy
Applied Physics Letters (2023) doi.org/10.1063/5.0135297 [PDF]

Half-Integer Conductance Plateau at the ν = 2/3 Fractional Quantum Hall State in a Quantum Point Contact
J. Nakamura, S. Liang, G. C. Gardner, and M. J. Manfra
Physical Review Letters (2023) doi.org/10.1103/PhysRevLett.130.076205 [PDF]

2022

Nonlocal conductance spectroscopy of Andreev bound states in gate-defined InAs/Al nanowires
Andreas Pöschl , Alisa Danilenko, Deividas Sabonis, Kaur Kristjuhan, Tyler Lindemann, Candice Thomas, Michael J. Manfra, and Charles M. Marcus
Physical Review B (2022) doi.org/10.1103/PhysRevB.106.L241301 [PDF]

Entropy Measurement of a Strongly Coupled Quantum Dot
Timothy Child, Owen Sheekey, Silvia Lüscher, Saeed Fallahi, Geoffrey C. Gardner, Michael Manfra, Andrew Mitchell, Eran Sela, Yaakov Kleeorin, Yigal Meir, and Joshua Folk
Physical Review Letters (2022) doi.org/PhysRevLett.129.227702 [PDF]

Anisotropic Vortex Squeezing in Synthetic Rashba Superconductors: A Manifestation of Lifshitz Invariants
L. Fuchs, D. Kochan, J. Schmidt, N. Hüttner, C. Baumgartner, S. Reinhardt, S. Gronin, G. C. Gardner, T. Lindemann, M. J. Manfra, C. Strunk, and N. Paradiso
Physical Review X (2022) doi.org/10.1103/PhysRevX.12.041020 [PDF]

Elimination of remnant phases in low-temperature growth of wurtzite ScAlN by molecular-beam epitaxy
Brandon Dzuba, Trang Nguyen, Amrita Sen, Rosa E. Diaz, Megha Dubey, Mukesh Bachhav, Janelle P. Wharry, Michael J. Manfra, and Oana Malis
Journal of Applied Physics (2022) doi.org/10.1063/5.0118075 [PDF]

Controlling Andreev Bound States with the Magnetic Vector Potential
Christian M. Moehle, Prasanna K. Rout, Nayan A. Jainandunsing, Dibyendu Kuiri, Chung Ting Ke, Di Xiao, Candice Thomas, Michael J. Manfra, Michał P. Nowak, and Srijit Goswami
Nano Letters (2022) doi.org/10.1021/acs.nanolett.2c03130 [PDF]

Spin-orbit coupling and electron scattering in high-quality InSb1-xAsx quantum wells
S. Metti, C. Thomas, D. Xiao, and M. J. Manfra
Physical Review B (2022) doi.org/10.1103/PhysRevB.106.165304 [PDF]

Gate-Tunable Transmon Using Selective-Area-Grown Superconductor-Semiconductor Hybrid Structures on Silicon
Albert Hertel, Michaela Eichinger, Laurits O. Andersen, David M.T. van Zanten, Sangeeth Kallatt, Pasquale Scarlino, Anders Kringhøj, José M. Chavez-Garcia, Geoffrey C. Gardner, Sergei Gronin, Michael J. Manfra, András Gyenis, Morten Kjaergaard, Charles M. Marcus, and Karl D. Petersson
Physical Review Applied (2022) doi.org/10.1103/PhysRevApplied.18.034042 [PDF]

Parametric longitudinal coupling between a high-impedance superconducting resonator and a semiconductor quantum dot singlet-triplet spin qubit
C. G. L. Bøttcher, S. P. Harvey, S. Fallahi, G. C. Gardner, M. J. Manfra, U. Vool, S. D. Bartlett & A. Yacoby
Nature Communications (2022) doi.org/10.1038/s41467-022-32236-w [PDF]

Microwave sensing of Andreev bound states in a gate-defined superconducting quantum point contact
Vivek Chidambaram, Anders Kringhøj, Lucas Casparis, Ferdinand Kuemmeth, Tiantian Wang, Candice Thomas, Sergei Gronin, Geoffrey C. Gardner, Zhengyi Cui, Chenlu Liu, Kristof Moors, Michael J. Manfra, Karl D. Petersson, and Malcolm R. Connolly
Physical Review Research (2022) doi.org/10.1103/PhysRevResearch.4.023170 [PDF]

Clean quantum point contacts in an InAs quantum well grown on a lattice-mismatched InP substrate 
Connie L. Hsueh, Praveen Sriram, Tiantian Wang, Candice Thomas, Geoffrey Gardner, Marc A. Kastner, Michael J. Manfra, and David Goldhaber-Gordon
Physical Review B (2022) doi.org/10.1103/PhysRevB.105.195303 [PDF]

Measurements of cyclotron resonance of the interfacial states in strong spin–orbit coupled 2D electron gases proximitized with aluminum 
Prashant Chauhan, Candice Thomas, Tyler Lindemann, Geoffrey C. Gardner, J. Gukelberger,  M. J. Manfra, and N. P. Armitage
Applied Physics Letters (2022) doi.org/10.1063/5.0087401 [PDF]

A Robust Protocol for Entropy Measurement in Mesoscopic Circuits
Timothy Child, Owen Sheekey, Silvia Lüscher, Saeed Fallahi, Geoffrey C. Gardner, Michael Manfra and Joshua Folk
Entropy (2022) doi.org/10.3390/e24030417 [PDF]

Novel nitride quantum structures for infrared sensing
Oana Malis, Trang Nguyen, Yang Cao, Brenden A Magill, Brandon Dzuba, Stephen McGill, Carlos Garcia, Giti A Khodaparast, Michael J. Manfra
Proceedings of SPIE (2022) doi.org/10.1117/12.2608173 [PDF]

Effect of Rashba and Dresselhaus spin–orbit coupling on supercurrent rectification and magnetochiral anisotropy of ballistic Josephson junctions
C Baumgartner, L Fuchs, A Costa, Jordi Picó-Cortés, S Reinhardt, S Gronin, G C Gardner, T Lindemann, M J Manfra, P E Faria Junior, D Kochan, J Fabian, N Paradiso and C Strunk
Journal of Physics: Condensed Matter (2022) doi.org/10.1088/1361-648X/ac4d5e [PDF]

Photoluminescence Study of Carrier Localization and Recombination in Nearly Strain-Balanced Nonpolar InGaN/AlGaN Quantum Wells
Yang Cao, Brandon Dzuba, Brenden A. Magill, Alexander Senichev, Trang Nguyen, Rosa E. Diaz, Michael J. Manfra, Stephen McGill, Carlos Garcia, Giti A. Khodaparast, and Oana Malis
Physica Status Solidi B (2022) doi.org/10.1002/pssb.202100569 [PDF]

Impact of bulk-edge coupling on observation of anyonic braiding statistics in quantum Hall interferometers
J. Nakamura, S. Liang, G. C. Gardner, and M. J. Manfra
Nature Communication (2022) doi.org/10.1038/s41467-022-27958-w [PDF]

Domain Textures in the Fractional Quantum Hall Effect
Ziyu Liu, Ursula Wurstbauer, Lingjie Du, Ken W. West, Loren N. Pfeiffer, Michael J. Manfra, and Aron Pinczuk
Physical Review Letters (2022) doi.org/10.1103/PhysRevLett.128.017401 [PDF]

2021

Supercurrent rectification and magnetochiral effects in symmetric Josephson junctions
Christian Baumgartner, Lorenz Fuchs, Andreas Costa, Simon Reinhardt, Sergei Gronin, Geoffrey C. Gardner, Tyler Lindemann, Michael J. Manfra, Paulo E. Faria Junior, Denis Kochan, Jaroslav Fabian, Nicola Paradiso and Christoph Strunk
Nature Nanotechnology (2021) doi.org/10.1038/s41565-021-01009-9 [PDF]

Josephson junctions via anodization of epitaxial Al on an InAs heterostructure
A. Jouan, J. D. S. Witt, G. C. Gardner, C. Thomas, T. Lindemann, S. Gronin, M. J. Manfra and D. J. Reilly
Applied Physics Letters (2021) doi.org/10.1063/5.0060757 [PDF]

Simultaneous Operations in a Two-Dimensional Array of Singlet-Triplet Qubits
Federico Fedele, Anasua Chatterjee, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra, and Ferdinand Kuemmeth
PRX Quanutm (2021) doi.org/10.1103/PRXQuantum.2.040306 [PDF]

Overcoming anomalous suppression of m-plane AlGaN growth by molecular-beam epitaxy using indium as a surfactant
Brandon Dzuba, Trang Nguyen, Yang Cao, Rosa E. Diaz, Michael J. Manfra, and Oana Malis
Applied Physics (2021) doi.org/10.1063/5.0058154 [PDF]

Mid-infrared intersubband absorption in strain-balanced non-polar (In)AlGaN/InGaN multi-quantum wells
Trang Nguyen, Brandon Dzuba, Yang Cao, Alexander Senichev, Rosa E. Diaz, Michael J. Manfra, and Oana Malis
Optical Materials Express (2021) doi.org/10.1364/OME.434866 [PDF]

Precision measurement of electron-electron scattering in GaAs/AlGaAs using transverse magnetic focusing
Adbhut Gupta, J. J. Heremans, Gitansh Kataria, Mani Chandra, S. Fallahi, G. C. Gardner & M. J. Manfra
Nature Communications (2021) doi.org/10.1038/s41467-021-25327-7 [PDF]

Anomalous nematic state to stripe phase transition driven by in-plane magnetic fields
X. Fu, Q. Shi, M. A. Zudov, G. C. Gardner, J. D. Watson, M. J. Manfra, K. W. Baldwin, L. N. Pfeiffer, and K. W. West
Physical Review B (2021) doi.org/10.1103/PhysRevB.104.L081301 [PDF]

Zeeman-driven parity transitions in an Andreev quantum dot
A. M. Whiticar, A. Fornieri, A. Banerjee, A. C. C. Drachmann, S. Gronin, G. C. Gardner, T. Lindemann, M. J. Manfra, and C. M. Marcus
Physical Review B (2021) doi.org/10.1103/PhysRevB.103.245308 [PDF]

Closing of the induced gap in a hybrid superconductor-semiconductor nanowire
D. Puglia, E. A. Martinez, G. C. Ménard, A. Pöschl, S. Gronin, G. C. Gardner, R. Kallaher, M. J. Manfra, C. M. Marcus, A. P. Higginbotham, & L. Casparis
Physical Review B (2021) doi.org/10.1103/PhysRevB.103.235201 [PDF]

Adiabatic quantum state transfer in a semiconductor quantum-dot spin chain
Yadav P. Kandel, Haifeng Qiao, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra & John M. Nichol
Nature Communications (2021) doi.org/10.1038/s41467-021-22416-5 [PDF]

Floquet-enhanced spin swaps
Haifeng Qiao, Yadav P. Kandel, John S. Van Dyke, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra, Edwin Barnes & John M. Nichol
Nature Communications (2021) doi.org/10.1038/s41467-021-22415-6 [PDF]

Observation of Flat Bands in Gated Semiconductor Artificial Graphene
Lingjie Du, Ziyu Liu, Shalom J. Wind, Vittorio Pellegrini, Ken W. West, Saeed Fallahi, Loren N. Pfeiffer, Michael J. Manfra, and Aron Pinczuk
Physical Review Letters (2021) doi.org/10.1103/PhysRevLett.126.106402 [PDF]

Hydrodynamic and Ballistic Transport over Large Length Scales in GaAs/AlGaAs
Adbhut Gupta, J. J. Heremans, Gitansh Kataria, Mani Chandra, S. Fallahi, G. C. Gardner, and M. J. Manfra
Physical Review Letters (2021) doi.org/10.1103/PhysRevLett.126.076803 [PDF]

Few-Electron Single and Double Quantum Dots in an InAs Two-Dimensional Electron Gas
Christopher Mittag, Jonne V. Koski, Matija Karalic, Candice Thomas, Aymeric Tuaz, Anthony T. Hatke, Geoffrey C. Gardner, Michael J. Manfra, Jeroen Danon, Thomas Ihn, and Klaus Ensslin
PRX Quantum (2021) doi.org/10.1103/PRXQuantum.2.010321 [PDF]

A cryogenic CMOS chip for generating control signals for multiple qubits
S. J. Pauka, K. Das, R. Kalra, A. Moini, Y. Yang, M. Trainer, A. Bousquet, C. Cantaloube, N. Dick, G. C. Gardner, M. J. Manfra, and D. J. Reilly
Nature Electronics (2021) doi.org/10.1038/s41928-020-00528-y [PDF]

Anodic oxidation of epitaxial superconductor-semiconductor hybrids
Asbjørn C. C. Drachmann, Rosa E. Diaz, Candice Thomas, Henri J. Suominen, Alexander M. Whiticar, Antonio Fornieri, Sergei Gronin, Tiantian Wang, Geoffrey C. Gardner, Alex R. Hamilton, Fabrizio Nichele, Michael J. Manfra, and Charles M. Marcus
Physical Review Materials (2021) doi.org/10.1103/PhysRevMaterials.5.013805 [PDF]

Josephson Inductance as a Probe for Highly Ballistic Semiconductor-Superconductor Weak Links
C. Baumgartner, L. Fuchs, L. Frész, S. Reinhardt, S. Gronin, G.C. Gardner, M.J. Manfra, N. Paradiso, and C. Strunk
Physical Review Letters (2021) doi.org/10.1103/PhysRevLett.126.037001 [PDF]

Long-Distance Superexchange between Semiconductor Quantum-Dot Electron Spins
Haifeng Qiao, Yadav P. Kandel, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra, Xuedong Hu, and John M. Nichol
Physical Review Letters (2021) doi.org/10.1103/PhysRevLett.126.017701 [PDF]

2020

Band Structure Extraction at Hybrid Narrow-Gap Semiconductor–Metal Interfaces
Schuwalow, S., Schröter, N. B. M., Gukelberger, J., Thomas, C., Strocov, V., Gamble, J., Chikina, A., Caputo, M., Krieger, J., Gardner, G. C., Troyer, M., Aeppli, G., Manfra, M. J., and Krogstrup, P
Advanced Science (2020) doi.org/10.1002/advs.202003087 [PDF]

Detection of the Quantum Capacitance of a Point Contact via Dispersive Gate Sensing
M.C. Jarratt, S.J. Waddy, A. Jouan, A.C. Mahoney, G.C. Gardner, S. Fallahi, M.J. Manfra, and D.J. Reilly
Physical Review Applied (2020) doi.org/10.1103/PhysRevApplied.14.064021 [PDF]

Hidden Quantum Hall Stripes in AlxGa1-xAs/Al0.24Ga0.76As Quantum Wells
X. Fu, Yi Huang, Q. Shi, B. I. Shklovskii, M. A. Zudov, G. C. Gardner, and M. J. Manfra
Physical Review Letters (2020) doi.org/10.1103/PhysRevLett.125.236803 [PDF]

Accurate characterization of tip-induced potential using electron interferometry
A. Iordanescu, S. Toussaint, G. Bachelier, S. Fallahi, G. C. Gardner, M. J. Manfra, B. Hackens, and B. Brun
Applied Physics Letters (2020) doi.org/10.1063/5.0023698 [PDF]

Observation of Photoinduced Terahertz Gain in GaAs Quantum Wells: Evidence for Radiative Two-Exciton-to-Biexciton Scattering
X. Li, K. Yoshioka, Q. Zhang, N.M. Peraca, F. Katsutani, W. Gao, G.T. Noe, J.D. Watson, M.J. Manfra, I. Katayama, J. Takeda, and J. Kono
Physical Review Letters (2020) doi.org/10.1103/PhysRevLett.125.167401 [PDF]

Reduction of charge noise in shallow GaAs/AlGaAs heterostructures with insulated gates
Shuang Liang, James Nakamura, Geoffrey C. Gardner, and Michael J. Manfra
Applied Physics Letters (2020) doi.org/10.1063/5.0026259 [PDF]

Indium surfactant assisted epitaxy of nonpolar (1010) AlGaN/InGaN multiple quantum well heterostructures
Brandon Dzuba, Alexander Senichev, Trang Nguyen, Yang Cao, Rosa E. Diaz, and Michael J. Manfra
Journal of Applied Physics (2020) doi.org/10.1063/5.0020263 [PDF]

Repairing the surface of InAs-based topological heterostructures
S. J. Pauka, J. D. S. Witt, C. N. Allen, B. Harlech-Jones, A. Jouan, G. C. Gardner, S. Gronin, T. Wang, C. Thomas, M. J. Manfra, J. Gukelberger, J. Gamble, D. J. Reilly, and M. C. Cassidy
Journal of Applied Physics (2020) doi.org/10.1063/5.0020263 [PDF]

Stability of multielectron bubbles in high Landau levels
Dohyung Ro, S. A. Myers, N. Deng, J. D. Watson, M. J. Manfra, L. N. Pfeiffer, K. W. West, and G. A. Csáthy
Physical Review B (2020) doi.org/10.1103/PhysRevB.102.115303 [PDF]

Direct observation of anyonic braiding statistics
James Nakamura, Shuang Liang, Geoffrey C. Gardner, and Michael J. Manfra
Nature Physics (2020) doi.org/10.1038/s41567-020-1019-1 [PDF]

Disorder broadening of even-denominator fractional quantum Hall states in the presence of a short-range alloy potential
E. Kleinbaum, Hongxi Li, N. Deng, G. C. Gardner, M. J. Manfra, and G. A. Csáthy
Physical Review B (2020) doi.org/10.1103/PhysRevB.102.035140 [PDF]

Coherent Multispin Exchange Coupling in a Quantum-Dot Spin Chain
Haifeng Qiao, Yadav P. Kandel, Kuangyin Deng, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra, Edwin Barnes, and John M. Nichol
Physical Review X (2020) doi.org/10.1103/PhysRevX.10.031006 [PDF]

Topological superconductivity in hybrid devices
S. M. Frolov, M. J. Manfra, and J. D. Sau
Nature Physics (2020) doi.org/10.1038/s41567-020-0925-6 [PDF]

Coherent transport through a Majorana island in an Aharonov–Bohm interferometer
A. M. Whiticar, A. Fornieri, E. C. T. O’Farrell, A. C. C. Drachmann, T. Wang, C. Thomas, S. Gronin, R. Kallaher, G. C. Gardner, M. J. Manfra, C. M. Marcus, & F. Nichele
Nature Communications (2020) doi.org/10.1038/s41467-020-16988-x [PDF]

Conditional teleportation of quantum-dot spin states
Haifeng Qiao, Yadav P. Kandel, Sreenath K. Manikandan, Andrew N. Jordan, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra, & John M. Nichol
Nature Communications (2020) doi.org/10.1038/s41467-020-16745-0 [PDF]

Relating Andreev Bound States and Supercurrents in Hybrid Josephson Junctions
F. Nichele, E. Portolés, A. Fornieri, A. M. Whiticar, A. C. C. Drachmann, S. Gronin, T. Wang, G. C. Gardner, C. Thomas, A. T. Hatke, M. J. Manfra, and C. M. Marcus
Physical Review Letters (2020) doi.org/10.1103/PhysRevLett.124.226801 [PDF]

Characterizing Quantum Devices at Scale with Custom Cryo-CMOS
S.J. Pauka, K. Das, J.M. Hornibrook, G.C. Gardner, M.J. Manfra, M.C. Cassidy, and D.J. Reilly
Physical Review Applied (2020) doi.org/10.1103/PhysRevApplied.13.054072 [PDF]

Anticorrelation of compressibility and resistivity in a microwave-irradiated two-dimensional electron system
Jian Mi, Long Zhang, Jianli Wang, Saeed Fallahi, Geoffrey C. Gardner, M. J. Manfra, and Chi Zhang
Physical Review B (2020) doi.org/10.1103/PhysRevB.101.195306 [PDF]

Photoluminescence study of non-polar m-plane InGaN and nearly strain-balanced InGaN/AlGaN superlattices
Yang Cao, Brandon Dzuba, Brenden A. Magill, Alexander Senichev, Trang Nguyen, Rosa E. Diaz, Michael J. Manfra, Stephen McGill, Carlos Garcia, Giti A. Khodaparast, and Oana Malis
Journal of Applied Physics (2020)
doi.org/10.1063/5.0003740 [PDF]

Autonomous Tuning and Charge-State Detection of Gate-Defined Quantum Dots
J. Darulová, S.J. Pauka, N. Wiebe, K.W. Chan, G.C Gardener, M.J. Manfra, M.C. Cassidy, and M. Troyer
Physical Review Applied (2020) doi.org/10.1103/PhysRevApplied.13.054005 [PDF]

Quantum Dots in an InSb Two-Dimensional Electron Gas
Ivan Kulesh, Chung Ting Ke, Candice Thomas, Saurabh Karwal, Christian M. Moehle, Sara Metti, Ray Kallaher, Geoffrey C. Gardner, Michael J. Manfra, and Srijit Goswami
Physical Review Applied (2020) doi.org/10.1103/PhysRevApplied.13.041003 [PDF]

The dependence of aluminum lattice orientation on semiconductor lattice parameter in planar InAs/Al hybrid heterostructures
Tiantian Wang, Candice Thomas, Rosa E. Diaz, Sergei Gronin, Donata Passarello, Geoffrey C. Gardner, Michael A. Capano, Michael J. Manfra
Journal of Crystal Growth (2020)
doi.org/10.1016/j.jcrysgro.2020.125570 [PDF]

Anomalous Nematic States in High Half-Filled Landau Levels
X. Fu, Q. Shi, M. A. Zudov, G. C. Gardner, J. D. Watson, M. J. Manfra, K. W. Baldwin, L. N. Pfeiffer, and K. W. West
Physical Review Letters (2020) doi.org/10.1103/PhysRevLett.124.067601 [PDF]

2019

Resistivity anisotropy of quantum Hall stripe phases
M. Sammon, X. Fu, Yi Huang, M. A. Zudov, B. I. Shklovskii, G. C. Gardner, J. D. Watson, M. J. Manfra, K. W. Baldwin, L. N. Pfeiffer, and K. W. West
Physical Review B (2019) doi.org/10.1103/PhysRevB.100.241303 [PDF]

Impact of growth conditions and strain on indium incorporation in non-polar m-plane (1010) InGaN grown by plasma-assisted molecular beam epitaxy
Alexander Senichev, Brandon Dzuba, Trang Nguyen, Yang Cao, Michael A. Capano, Michael J. Manfra, and Oana Malis
APL Materials (2019) doi.org/10.1063/1.5121445 [PDF]

Toward durable Al-InSb hybrid heterostructures via epitaxy of 2ML interfacial InAs screening layers
C. Thomas, R. E. Diaz, J. H. Dycus, M. E. Salmon, R. E. Daniel, T. Wang, G. C. Gardner, and M. J. Manfra
Physical Review Materials (2019) doi.org/10.1103/PhysRevMaterials.3.124202 [PDF]

Topological kink plasmons on magnetic-domain boundaries
Dafei Jin, Yang Xia, Thomas Christensen, Matthew Freeman, Siqi Wang, King Yan Fong, Geoffrey C. Gardner, Saeed Fallahi, Qing Hu, Yuan Wang, Lloyd Engel, Zhi-Li Xiao, Michael J. Manfra, Nicholas X. Fang & Xiang Zhang
Nature Communications (2019) doi.org/10.1038/s41467-019-12092-x [PDF]

Coherent spin-state transfer via Heisenberg exchange
Yadav P. Kandel, Haifeng Qiao, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra, & John M. Nichol
Nature (2019) doi.org/10.1038/s41586-019-1566-8 [PDF]

Ballistic superconductivity and tunable π–junctions in InSb quantum wells
Chung Ting Ke, Christian M. Moehle, Folkert K. de Vries, Candice Thomas, Sara Metti, Charles R. Guinn, Ray Kallaher, Mario Lodari, Giordano Scappucci, Tiantian Wang, Rosa E. Diaz, Geoffrey C. Gardner, Michael J. Manfra, & Srijit Goswami
Nature Communications (2019) doi.org/10.1038/s41467-019-1174 [PDF]

Gate-defined quantum point contact in an InAs two-dimensional electron gas
Christopher Mittag, Matija Karalic, Zijin Lei, Candice Thomas, Aymeric Tuaz, Anthony T. Hatke, Geoffrey C. Gardner, Michael J. Manfra, Thomas Ihn, and Klaus Ensslin
Physical Review B (2019) doi.org/10.1103/PhysRevB.100.075422 [PDF]

Gate-Sensing Charge Pockets in the Semiconductor-Qubit Environment
X.G. Croot, S.J. Pauka, M.C. Jarratt, H. Lu, A.C. Gossard, J.D. Watson, G.C. Gardner, S. Fallahi, M.J. Manfra, and D.J. Reilly
Physical Review Applied (2019) doi.org/10.1103/PhysRevApplied.11.064027 [PDF]

Electron bubbles and the structure of the orbital wave function
Dohyung Ro, N. Deng, J. D. Watson, M. J. Manfra, L. N. Pfeiffer, K. W. West, and G. A. Csáthy
Physical Review B (2019) doi.org/10.1103/PhysRevB.99.201111 [PDF]

On the parabolicity of dipolar exciton traps and their population of excess charge carriers
S Dietl, L Sigl, L Sponfeldner, G Gardner, M Manfra, J P Kotthaus, U Wurstbauer and A W Holleitner
New Journal of Physics (2019) doi.org/10.1088/1367-2630/ab1c89 [PDF]

Evidence of topological superconductivity in planar Josephson junctions
Antonio Fornieri, Alexander M. Whiticar, F. Setiawan, Elías Portolés, Asbjørn C. C. Drachmann, Anna Keselman, Sergei Gronin, Candice Thomas, Tian Wang, Ray Kallaher, Geoffrey C. Gardner, Erez Berg, Michael J. Manfra, Ady Stern, Charles M. Marcus & Fabrizio Nichele
Nature (2019) doi.org/10.1038/s41586-019-1068-8 [PDF]

Two- and three-electron bubbles in AlxGa1−xAs/Al0.24Ga0.76As quantum wells
X. Fu, Q. Shi, M. A. Zudov, G. C. Gardner, J. D. Watson, M. J. Manfra
Physical Review B (2019) doi.org/10.1103/PhysRevB.99.161402 [PDF]

Fast spin exchange across a multielectron mediator
Filip K. Malinowski, Frederico Martins, Thomas B. Smith, Stephen D. Bartlett, Andrew C. Doherty, Peter D. Nissen, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra, Charles M. Marcus & Ferdinand Kuemmeth
Nature Communications (2019) doi.org/10.1038/s41467-019-09194-x [PDF]

Observation of new plasmons in the fractional quantum Hall effect: interplay of topological and nematic orders
Lingjie Du, Ursula Wurstbauer, Ken W. West, Loren N. Pfeiffer, Saeed Fallahi, Geoff C. Gardner, Michael J. Manfra, Aron Pinczuk
Science Advances (2019) doi.org/10.1126/sciadv.aav3407 [PDF]

Aharonov–Bohm interference of fractional quantum Hall edge modes.
J. Nakamura, S. Fallahi, H. Sahasrabudhe, R. Rahman, S. Liang, G. C. Gardner & M. J. Manfra
Nature Physics (2019) doi.org/10.1038/s41567-019-0441-8 [PDF]

Integrated high electron mobility transistors in GaAs/AlGaAs heterostructures for amplification at sub-Kelvin temperatures
L.A. Tracy, J.L. Reno, S. Fallahi, M. J. Manfra
Applied Physics Letters (2019) doi.org/10.1063/1.5083818 [PDF]

2018

Hybridization of Subgap States in One-Dimensional Superconductor-Semiconductor Coulomb Islands
E.C.T. O’Farrell, A.C.C. Drachmann, M. Hell, A. Fornieri, A.M. Whiticar, E.B. Hansen, S. Gronin, G.C. Gardner, C. Thomas, M.J. Manfra, K. Flensberg, C.M. Marcus, and F. Nichele
Phys. Rev. Lett. 121, 256803 (2018) [PDF]

Effect of illumination on quantum lifetime in GaAs quantum wells
X. Fu, A. Riedl, M. Borisov, M. A. Zudov, J. D. Watson, G. Gardner, M. J. Manfra, K. W. Baldwin, L. N. Pfeiffer, and K. W. West
Phys. Rev. B 98, 195403 (2018) [PDF]

Effect of density on microwave-induced resistance oscillations in back-gated GaAs quantum wells
Fu, M. D. Borisov, M. A. Zudov, Q. Qian, J. D. Watson, M. J. Manfra
Phys. Rev. B 98, 121303(R) (2018) doi.org/10.1103/PhysRevB.98.121303 [PDF]

Readout of singlet-triplet qubits at large magnetic field gradients
Lucas A. Orona, John M. Nichol, Shannon P. Harvey, Charlotte G. L. Bøttcher, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra, and Amir Yacoby
Physical Review B (2018) doi.org/10.1103/PhysRevB.98.125404 [PDF]

MilliKelvin HEMT Amplifiers for Low Noise High Bandwidth Measurement of Quantum Devices
Tracy, Lisa A; Reno, John L.; Hargett, Terry; Fallahi, Saeed; Manfra, Michael
Sandia National Lab (2018) doi.org/10.2172/1471452 [PDF]

Evolution of indium segregation in metal-polar In0.17Al0.83N lattice-matched to GaN grown by plasma-assisted molecular beam epitaxy
A.Senichev, T.Nguyen, R.E.Diaz, B.Dzuba, M.Shirazi-HD, Y.Cao, M.J.Manfra and O.Malis
Journal of Crystal Growth 500 (2018) 52-57, doi.org/10.1016/j.jcrysgro.2018.08.016 [PDF]

A capacitance spectroscopy-based platform for realizing gate-defined electronic lattices
T. Hensgens, U. Mukhopadhyay, P. Barthelemy, R. F. L. Vermeulen, R. N. Schouten, S. Fallahi, G. C. Gardner, C. Reichl, W. Wegscheider, M. J. Manfra, and L. M. K. Vandersypen
Journal of Applied Physics (2018) doi.org/10.1063/1.5046796 [PDF]

Device Architecture for Coupling Spin Qubits via an Intermediate Quantum State
X.G. Croot, S.J. Pauka, J.D. Watson, G.C. Gardner, S. Fallahi, M.J. Manfra and D.J. Reilly
PHYSICAL REVIEW APPLIED 10, 044058 (2018) [PDF]

High-mobility InAs 2DEGs on GaSb substrates: A platform for mesoscopic quantum transport
C. Thomas, A. T. Hatke, A. Tuaz, R. Kallaher, T. Wu, T. Wang, R. E. Diaz, G. C. Gardner, M. A. Capano, and M. J. Manfra
Physical Review Materials 2, 104602 (2018) [PDF]

Superconducting gatemon qubit based on a proximitized two-dimensional electron gas
Lucas Casparis, Malcolm R. Connolly, Morten Kjaergaard, Natalie J. Pearson, Anders Kringhøj, Thorvald W. Larsen, Ferdinand Kuemmeth, Tiantian Wang, Candice Thomas, Sergei Gronin, Geoffrey C. Gardner, Michael J. Manfra, Charles M. Marcus and Karl D. Petersson.
Nature Nanotechnology (2018) doi.org/10.1038/s41565-018-0207-y [PDF]

Emerging many-body effects in semiconductor artificial graphene with low disorder
Lingjie Du , Sheng Wang, Diego Scarabelli, Loren N. Pfeiffer, Ken W. West, Saeed Fallahi, Geoff C. Gardner, Michael J. Manfra, Vittorio Pellegrini, Shalom J. Wind & Aron Pinczuk
Nature Communication (2018) DOI: 10.1038/s41467-018-05775-4 [PDF]

Direct entropy measurement in a mesoscopic quantum system
Nikolaus Hartman, Christian Olsen, Silvia Lüscher, Mohammad Samanil, Saeed Fallahi, Geoffrey C. Gardner, Michael Manfra and Joshua Folk
Nature Physics (2018) doi.org/10.1038/s41567-018-0250-5 [PDF]

Electron–electron interactions and the paired-to-nematic quantum phase transition in the second Landau level
K. A. Schreiber, N. Samkharadze, G. C. Gardner, Y. Lyanda-Geller, M. J. Manfra, L. N. Pfeiffer, K. W. West & G. A. Csáthy
Nature Communications (2018) DOI: 10.1038/s41467-018-04879-1 [PDF]

Intersubband Transitions in Nonpolar m-Plane AlGaN/GaN Heterostructures
Trang Nguyen, MohammadAli Shirazi-Hosseini-Dokht, Yang Cao, Rosa E. Diaz, Geoffrey C. Gardner, Michael J. Manfra, and Oana Malis.
Phys. Status Solidi A, 1700828 (2018) [PDF]

Vacuum Bloch-Siegert shift in Landau polaritons with ultra-high cooperativity
Xinwei Li, Motoaki Bamba , Qi Zhang , Saeed Fallahi, Geoff C. Gardner, Weilu Gao, Minhan Lou, Katsumasa Yoshioka, Michael J. Manfra and Junichiro Kono .
Nature Photonics (2018) Doi:10.1038/s41566-018-0153-0 [PDF]

Spin of a Multielectron Quantum Dot and Its Interaction with a Neighboring Electron
Filip K. Malinowski, Frederico Martins, Thomas B. Smith, Stephen D. Bartlett, Andrew C. Doherty, Peter D. Nissen, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra, Charles M. Marcus, and Ferdinand Kuemmeth
Phys. Rev X 8, 011045 (2018) [PDF]

Impact of Silicon Doping on Low-Frequency Charge Noise and Conductance drift in GaAs/AlxGa1 − xAs Nanostructures
S. Fallahi, J. R. Nakamura, G. C. Gardner, M. M. Yannell, and M. J. Manfra
Phys Rev. App. 9, 034008 (2018) [PDF]

Kinetic instability of AlGaN alloys during MBE growth under metal-rich conditions on m-plane GaN miscut towards the -c axis
M. Shirazi-HD, R. E. Diaz, T. Nguyen, J. Jian, G. C. Gardner, H. Wang, M. J. Manfra, and O. Malis
Journal of Applied Physics 123, 161581 (2018) [PDF]

Optimization of edge state velocity in the integer quantum Hall regime
H. Sahasrabudhe, B. Novakovic, J. Nakamura, S. Fallahi, M. Povolotskyi,G. Klimeck, R. Rahman, and M. J. Manfra.
Phys. Rev. B 97, 085302 (2018) [PDF]

h/e Superconducting Quantum Interference through Trivial Edge States in InAs
Folkert K. de Vries, Tom Timmerman, Viacheslav P. Ostroukh, Jasper van Veen, Arjan J. A. Beukman, Fanming Qu, Michael Wimmer, Binh-Minh Nguyen, Andrey A. Kiselev, Wei Yi, Marko Sokolich, Michael J. Manfra, Charles M. Marcus, and Leo P. Kouwenhoven.
Phys. Rev. Lett. 120, 047702 (2018) [PDF]

Observation of Dirac bands in artificial graphene in small-period nanopatterned GaAs quantum wells
Sheng Wang, Diego Scarabelli, Lingjie Du, Yuliya Y. Kuznetsova, Loren N. Pfeiffer, Ken W. West, Geoff C. Gardner, Michael J. Manfra, Vittorio Pellegrini, Shalom J. Wind, Aron Pinczuk.
Nature Nanotechnology (2018), DOI:10.1038/s41565-017-0006-x [PDF]

2017

Spin-orbit interaction in a dual gated InAs/GaSb quantum well
Arjan J. A. Beukman, Folkert K. de Vries, Jasper van Veen, Rafal Skolasinski, Michael Wimmer, Fanming Qu, David T. de Vries, Binh-Minh Nguyen, Wei Yi, Andrey A. Kiselev, Marko Sokolich, Michael J. Manfra, Fabrizio Nichele, Charles M. Marcus, and Leo P. Kouwenhoven.
Phys. Rev. B 96, 241401(R) (2017) [PDF]

Spectrum of the Nuclear Environment for GaAs Spin Qubits
Filip K. Malinowski, Frederico Martins, Łukasz Cywiński, Mark S. Rudner, Peter D. Nissen, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra, Charles M. Marcus, and Ferdinand Kuemmeth
Phys. Rev. Lett. 118, 177702 (2017) [PDF]

Negative Spin Exchange in a Multielectron Quantum Dot
Frederico Martins, Filip K. Malinowski, Peter D. Nissen, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra, Charles M. Marcus, and Ferdinand Kuemmeth
Phys. Rev. Lett. 119, 227701 (2017) [PDF]

Possible nematic to smectic phase transition in a two-dimensional electron gas at half-filling
Qian, Q.; Nakamura, J.; Fallahi, S.; G.C. Gardner; M.J. Manfra
Nature Communications DOI: 10.1038/s41467-017-01810-y [PDF]

Mobility in excess of 106 cm2/V s in InAs quantum wells grown on lattice mismatched InP substrates
Hatke, A. T.; Wang, T.; Thomas, C. ; G.C. Gardner; M.J. Manfra
Appl. Phys. Lett. 111, 142106 ( 2017) [PDF]

Scaling of Majorana Zero-Bias Conductance Peaks
Fabrizio Nichele, Asbjorn C. C. Drachmann, Alexander M. Whiticar, Eoin C. T. O'Farrell, Henri J. Suominen, Antonio Fornieri, Tian Wang, Geofrey C. Gardner, Candice Thomas, Anthony T. Hatke, Peter Krogstrup, Michael J. Manfra, Karsten Flensberg, and Charles M. Marcus
Phys. Rev. Lett 119, 136803 (2017) [PDF]

Symmetric operation of the resonant exchange qubit
F K. Malinowski, F. Martins, P. D. Nissen, S. Fallahi, G. C. Gardner, M. J. Manfra, C. M. Marcus, F. Kuemmeth.
Phys. Rev. B, 96, 045443 (2017) [PDF]

Onset of quantum criticality in the topological-to-nematic transition in a two-dimensional electron gas at filling factor ν=5/2
K. A. Schreiber, N. Samkharadze, G. C. Gardner,R. R. Biswas, M. J. Manfra, G. A. Csáthy.
Phys. Rev. B, 96, 041107 (2017) [PDF]

Microwave-induced resistance oscillations in a back-gated GaAs quantum well
X. Fu, Q. A. Ebner, Q. Shi, M. A. Zudov, Q. Qian, J. D. Watson, M. J. Manfra.
Phys. Rev. B, 95, 235415 (2017) [PDF]

High-temperature resistivity measured at ν = 5/2 as a predictor of the two-dimensional electron gas quality in the N = 1 Landau level
Q. Qian, J. Nakamura, S. Fallahi, G. C. Gardner, J. D. Watson, M. J. Manfra.
Phys. Rev. B B 95, 241304(R) (2017) [PDF]

Quantum lifetime in ultrahigh quality GaAs quantum wells: Relationship to  Δ5/2 and impact of density fluctuations
Q. Qian, J. Nakamura, S. Fallahi, G. C. Gardner, J. D. Watson, S. Lüscher, J. A. Folk, G. A. Csáthy, M. J. Manfra.
Phys. Rev. B 96, 035309 (2017) [PDF]

Apparent temperature-induced reorientation of quantum Hall stripes
Shi,M. A. Zudov,B. Friess, J. Smet, J. D. Watson, G. C. Gardner, M. J. Manfra
Phys. Rev. B 95, 161404(R) (2017)  [PDF]

Effect of density on quantum Hall stripe orientation in tilted magnetic fields
Shi, M. A. Zudov, Q. Qian, J. D. Watson, M. J. Manfra
Phys. Rev. B 95, 161303(R) (2017) [PDF]

Spectrum of the Nuclear Environment for GaAs Spin Qubits
Filip K. Malinowski, Frederico Martins, Łukasz Cywiński, Mark S. Rudner, Peter D. Nissen, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra, Charles M. Marcus, Ferdinand Kuemmeth
Phys. Rev. Lett. 118, 177702 (2017)  [PDF]

On-Chip Microwave Quantum Hall Circulator
A. C. Mahoney, J. I. Colless, S. J. Pauka, J. M. Hornibrook, J. D. Watson, G. C. Gardner, M. J. Manfra, A. C. Doherty, and D. J. Reilly
Phys. Rev. X 7, 011007  (2017) [PDF]

Giant Spin-Orbit Splitting in Inverted InAs/GaSb Double Quantum Wells
Fabrizio Nichele, Morten Kjaergaard, Henri J. Suominen, Rafal Skolasinski, Michael Wimmer, Binh-Minh Nguyen, Andrey A. Kiselev, Wei Yi, Marko Sokolich, Michael J. Manfra, Fanming Qu, Arjan J. A. Beukman, Leo P. Kouwenhoven, and Charles M. Marcus
Phys. Rev. Lett. 118, 016801 – (2017)   [PDF]

High-fidelity entangling gate for double-quantum-dot spin qubits
John M. Nichol, Lucas A. Orona, Shannon P. Harvey, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra & Amir Yacoby
npj Quantum Information 3, Article number: 3 (2017)

Notch filtering the nuclear environment of a spin quit
F. K. Malinowski, F. Martins, P. D. Nissen, E. Barnes, Ł. Cywiński, M. S. Rudner, S. Fallahi, G. C. Gardner, M. J. Manfra, C. M. Marcus, and F. Kuemmeth
Nature Nanotechnology (2017) DOI:10.1038/nnano.2016.170

2016

Quasi-ballistic thermal transport in Al0.1Ga0.9N thin film semiconductors
Yee Rui Koh, MohammadAli Shirazi-HD, Bjorn Vermeersch, Amr M. S. Mohammed, Jiayi Shao, Gilles Pernot, Je-Hyeong Bahk, Michael J. Manfra, and Ali Shakouri
Appl. Phys. Lett. 109, 243107 (2016)  [PDF]

Quantized conductance and large g-factor anisotropy in InSb quantum point contacts
Fanming Qu Jasper van Veen Folkert K de Vries Arjan J A Beukman Michael Wimmer Wei Yi Andrey A Kiselev Binh-Minh Nguyen Marko Sokolich Michael J Manfra Fabrizio Nichele Charles M Marcus Leo P Kouwenhoven
NANO LETTERS
Volume: 16  Issue: 12  Pages: 7509-7513 [PDF]

Stability of High-Density Two-Dimensional Excitons against a Mott Transition in High Magnetic Fields Probed by Coherent Terahertz Spectroscopy
Zhang, Y. Wang, W. Gao, Z. Long, J. D. Watson, M. J. Manfra, A. Belyanin, and J. Kono
Physical Review Letters 117, 207402 (2016) [PDF]

Electron-Hole Asymmetric Chiral Breakdown of Reentrant Quantum Hall States
A. V. Rossokhaty, Y. Baum, J. A. Folk, J. D. Watson, G. C. Gardner, and M. J. Manfra
Physical Review Letters 117, 166805 (2016) [PDF]

Observation of electron states of small period artificial graphene in nano-patterned GaAs quantum wells
S. Wang, D. Scarabelli, Y. Y. Kuznetsova, S. J. Wind, A. Pinczuk, V. Pellegrini, M. J. Manfra, G. C. Gardner, L. N. Pfeiffer, and K. W. West
Applied Physics Letters 109, 113101 (2016) [PDF]

Collective non-perturbative coupling of 2D electrons with high-quality-factor terahertz cavity photons
Q. Zhang, M. Lou, X. Li, J. L. Reno,W. Pan, J. D.Watson, M. J. Manfra, and J. Kono
Nature Physics (2016) DOI: 10.1038/NPHYS3850

Decoupling Edge Versus Bulk Conductance in the Trivial Regime of an InAs/GaSb Double Quantum Well Using Corbino Ring Geometry
B. M. Nguyen, A. A. Kiselev, Ramsey Noah, Wei Yi, Fanming Qu, A. J. A. Beukman,
F. K. de Vries, J. van Veen, S. Nadj-Perge, L. P. Kouwenhoven, M. Kjaergaard, H. J. Suominen, F. Nichele, C. M. Marcus, M. J. Manfra, and M. Sokolich
Physical Review Letters 117, 077701 (2016) [PDF]

Edge transport in the trivial phase of InAs/GaSb
F. Nichele, H. J Suominen, M. Kjaergaard, C. M. Marcus, E. Sajadi, J. A. Folk, F. Qu, A. J. A. Beukman, F. K. de Vries, J. van Veen, S. Nadj-Perge, L. P Kouwenhoven, B. M. Nguyen, A. A. Kiselev, W. Yi, M. Sokolich, M. J Manfra, E. M. Spanton, and K. A. Moler
New Journal of Physics 18, 083005 (2016) [PDF]

Resistively detected high-order magnetoplasmons in a high-quality two-dimensional electron gas
Q. Shi, M. A. Zudov, L. N. Pfeiffer, K. W. West, J. D. Watson, and M. J. Manfra
Physical Review B 93, 165438 (2016) [PDF]

Dramatic enhancement of near-infrared intersubband absorption in c-plane AlInN/GaN
superlattices

M. Shirazi-HD, K. Turkmeneli, S. Liu, S. Dai, C. Edmunds, J. Shao, G. C. Gardner, D. N. Zakharov, M. J. Manfra,
and O. Malis
Applied Physics Letters 108, 121108 (2016) [PDF]

Evidence for a new symmetry breaking mechanism reorienting quantum Hall nematics
Q. Shi, M. A. Zudov, J. D. Watson, G. C. Gardner, and M. J. Manfra
Physical Review B 93, 121411(R) (2016) [PDF]

Noise Suppression Using Symmetric Exchange Gates in Spin Qubits
F. Martins, F. K. Malinowski, P. D. Nissen, E. Barnes, S. Fallahi, G. C. Gardner, M. J. Manfra, C. M. Marcus, and F. Kuemmeth
Physical Review Letters 116, 116801 (2016) [PDF]

Reorientation of quantum Hall stripes within a partially filled Landau level
Q. Shi, M. A. Zudov, J. D. Watson, G. C. Gardner, and M. J. Manfra
Physical Review B 93, 121404(R) (2016) [PDF]

Observation of a transition from a topologically ordered to a spontaneously broken symmetry phase
N. Samkharadze, K. A. Schreiber, G. C. Gardner, M. J. Manfra, E. Fradkin & G. A. Csáthy
Nature Physics 12 (2016) DOI: 10.1038/NPHYS3523

Modified MBE hardware and techniques and role of gallium purity for attainment of two dimensional electron gas mobility > 35 x 10 6 cm2/V s in AlGaAs/GaAs quantum wells grown by MBE
G. C.Gardner, S. Fallahi, J. D.Watson, and M. J. Manfra
Journal of Crystal Growth 441,71–77 (2016) [PDF]

Optical Emission Spectroscopy Study of Competing Phases of Electrons in the Second Landau Level
A. L. Levy, U. Wurstbauer, Y. Y. Kuznetsova, A. Pinczuk, L. N. Pfeiffer, K.W. West, M. J. Manfra, G. C. Gardner, and J. D. Watson
Physical Review Letters 116, 016801 (2016) [PDF]

2015

Gapped excitations of unconventional fractional quantum Hall effect states in the second Landau level
U. Wurstbauer, A. L. Levy, A. Pinczuk, K. W. West, L. N. Pfeiffer, M. J. Manfra, G. C. Gardner, and J. D. Watson
Physical Review B 92, 241407 (2015) [PDF]

Coherent vertical electron transport and interface roughness effects in AlGaN/GaN intersubband devices
A Grier, A. Valavanis, C. Edmunds, J. Shao, J. D. Cooper, G. Gardner, M. J. Manfra, O. Malis, D. Indjin, Z. Ikonic, and P. Harrison
Journal of Applied Physics 118, 224308 (2015) [PDF]

Fabrication of artificial graphene in a GaAs quantum heterostructure
D. Scarabelli, S. Wang, A. Pinczuk, S. J. Wind, Y. Y. Kuznetsova, L. N. Pfeiffer, K. West, G.C. Gardner, M. J. Manfra and V. Pellegrini
Journal of Vacuum Science and Technology B 33, 06FG03 (2015) [PDF]

In-surface confinement of topological insulator nanowire surface states
F.W. Chen, L. A. Jauregui, Y. H. Tan, M. J.  Manfra, G. Klimeck, Y. P. Chen, and T. Kubis
Applied Physics Letters 107,  121605  (2015) [PDF]

Transport of a sliding Wigner crystal in the four flux composite fermion regime
C. Zhang, R. R. Du, M. J. Manfra, L. N. Pfeiffer, and K. W. West
Physical Review B 92, 075434   (2015) [PDF]

Shubnikov-de Haas oscillations in a two-dimensional electron gas under subterahertz radiation
Q. Shi, P. D. Martin, A. T. Hatke, M. A. Zudov, J. D. Watson, G. C. Gardner, M. J. Manfra, L. N. Pfeiffer and K. W. West
Physical Review B 92, 081405 (2015) [PDF]

Electric and Magnetic Tuning Between the Trivial and Topological Phases in InAs/GaSb Double Quantum Wells
F. M. Wu, A. J. A. Beukman, S. Nadj-Perge, M. Wimmer, B.M. Nguyen, W. Yi, J. Thorp, M. Sokolich, A. A. Kiselev, M. J. Manfra, C. M. Marcus, and L. P. Kouwenhoven
Physical Review Letters 115, 036803 (2015) [PDF]

Induced superconductivity in high-mobility two-dimensional electron gas in gallium arsenide heterostructures
Zhong Wan, Aleksandr Kazakov, Michael J. Manfra
Nature Communications 6, 7426 (2015) [PDF]

Gate-tunable high mobility remote-doped InSb/In1-xAlxSb quantum well heterostructures
W. Yi, A. A. Kiselev, J. Thorp, R. Noah, B. M. Nguyen, S. Bui, R. D. Rajavel, T. Hussain, M. F. Gyure, P. Kratz, Q. Qian, M. J. Manfra, V. S. Pribiag, L. P. Kouwenhoven, C. M. Marcus, and M. Sokolich
Applied Physics Letters 106, 142103 (2015) [PDF]

Impact of Heterostructure Design on Transport Properties in the Second Landau Level
of In Situ Back-Gated Two-Dimensional Electron Gases

J. D. Watson, G. A. Csáthy, and M. J. Manfra
Physical Review Applied 3, 064004 (2015) [PDF]

Cryogenic Control Architecture for Large-Scale Quantum Computing
J. M. Hornibrook, J. I. Colless, I. D. Conway Lamb, S. J. Pauka, H. Lu, A. C. Gossard, J. D. Watson, G. C. Gardner, S. Fallahi, M. J. Manfra, and D. J. Reilly
Physical Review Applied 3, 024010 (2015) [PDF]

Inversion-mode GaAs wave-shaped field-effect transistor on GaAs (100) substrate
J. Zhang, X. Lou, M. Si, H. Wu, J. Shao, M. J. Manfra, R. G. Gordon, and P.D. Ye
Applied Physics Letters 106, 073506 (2015) [PDF]

2014

Multiphoton processes at cyclotron resonance subharmonics in a two-dimensional electron system
under dc and microwave excitation
S. Chakraborty, A. T. Hatke, L. W. Engel, J. D. Watson, and M. J. Manfra
Physical Review  B 90, 195437 (2014) [PDF]

Field-effect-induced two-dimensional electron gas utilizing modulation-doped ohmic contacts
S. Mondal, G. C. Gardner, J. D. Watson, S. Fallahi, A. Yacoby, M. J. Manfra
Solid State Communications 197, 20–24 (2014) [PDF]

Low-temperature illumination and annealing of ultrahigh quality quantum wells
M. Samani, A. V. Rossokhaty, E. Sajadi, S. Lüscher, J. A. Folk, J. D. Watson, G. C. Gardner, and M. J. Manfra
Physical Review B 90, 121405(R) (2014) [PDF]

Superradiant Decay of Cyclotron Resonance of Two-Dimensional Electron Gases
Q. Zhang, T. Arikawa, E. Kato, J. L. Reno, W. Pan, J. D. Watson, M. J. Manfra, M. A. Zudov, M. Tokman, M. Erukhimova, A. Belyanin, and J. Kono
Physical Review Letters 113, 047601 (2014) [PDF]

Terahertz intersubband absorption in non-polar m-plane AlGaN/GaN quantum wells
C. Edmunds, J. Shao, M. Shirazi-HD, M. J. Manfra, and O. Malis
Appl. Phys. Lett. 105, 021109 (2014) [PDF]

Impact of short-range scattering on the metallic transport of strongly correlated two-dimensional holes in GaAs quantum wells
N. J. Goble, J. D. Watson, M. J. Manfra, and X. P. A. Gao
Physical Review B 90, 035310 (2014) [PDF]

Surface topography and chemistry shape cellular behavior on wide band-gap semiconductors
L. E. Bain, R. Collazo, S. Hsu, N. Pfiester Latham, M. J. Manfra, A. Ivanisevic
Acta Biomaterialia, 10 6, 2455-2462 (2014) [PDF]

Full control of quadruple quantum dot circuit charge states in the single electron regime
M. R. Delbecq, T. Nakajima, T. Otsuka, S. Amaha, J. D. Watson, M. J. Manfra, and S. Tarucha
Appl. Phys. Lett. 104, 183111 (2014) [PDF]

ν=5/2 Fractional Quantum Hall State in the Presence of Alloy Disorder
N. Deng, G. C. Gardner, S. Mondal, E. Kleinbaum, M. J. Manfra, and G. A. Csáthy
Physical Review Letters 112, 116804 (2014) [PDF]

Quantum band engineering of nitride semiconductors for infrared lasers
O. Malis,  C. Edmunds, D. Li,, J. Shao,  G. Gardner,  W. Li,  P. Fay,  and M. J. Manfra
Proc. SPIE 9002, Novel In-Plane Semiconductor Lasers XIII, 90021D (2014) [PDF]

Molecular Beam Epitaxy of Ultra-High-Quality AlGaAs/ GaAs Heterostructures: Enabling Physics in Low-Dimensional Electronic Systems
M. J. Manfra
Annu. Rev. Condens.Matter Phys. 5:347–73 (2014) [PDF]

2013

Comparative study of intersubband absorption in AlGaN/GaN and AlInN/GaN superlattices: Impact of material inhomogeneities
C. Edmunds, L. Tang, M. Cervantes, M. Shirazi-HD, J. Shao,  A. Grier, A. Valavanis, J. D. Cooper, D. Li, G. Gardner, D. N. Zakharov, Z. Ikonic,  D. Indjin, P. Harrison, M. J. Manfra, and O. Malis
Physical Review B 88, 235206 (2013) [PDF]

Homogeneous AlGaN/GaN superlattices grown on free-standing (1 100) GaN substrates by plasma-assisted molecular beam epitaxy
J. Shao, D. N. Zakharov, C. Edmunds, O. Malis, and M. J. Manfra
Appl. Phys. Lett.103, 232103 (2013) [PDF]

Growth and electrical characterization of Al0.24Ga0.76As/AlxGa1−xAs/Al0.24Ga0.76 As modulation-doped quantum wells with extremely low x
G. C. Gardner, J. D. Watson, S. Mondal, N. Deng, G. A. Csáthy, and M. J. Manfra
Appl. Phys. Lett. 102, 252103 (2013) [PDF]

Temperature-dependence of negative differential resistance in GaN/AlGaN resonant tunneling structures
D. Li, J. Shao, L. Tang, C. Edmunds, G. Gardner, M. J. Manfra and O. Malis
Semicond. Sci. Technol. 28, 074024 (2013)  [PDF]

Evidence for effective mass reduction in GaAs/AlGaAs quantum wells
A.T. Hatke, M. A. Zudov, J.D. Watson, M. J. Manfra, L.N. Pfeiffer, and K.W. West
Physical Review B 87, 161307(R) (2013) [PDF]

Effects of forming gas anneal on ultrathin InGaAs nanowire metal-oxide semiconductor field-effect transistors
M. Si, J. J. Gu, X. Wang, J. Shao, X. Li, M. J. Manfra, R. G. Gordon, and P. D. Ye.
Appl. Phys. Lett. 102, 093505 (2013) [PDF]

Physisorption of functionalized gold nanoparticles on AlGaN/GaN highelectron mobility transistors for sensing applications
M. S. Makowski, S. Kim, M. Gaillard, D. Janes, M. J. Manfra, I. Bryan, Z. Sitar, C. Arellano, J. Xie, R. Collazo, and A. Ivanisevic
Appl. Phys. Lett. 102, 074102 (2013) [PDF]

Strong heavy-to-light hole intersubband absorption in the valence band of carbon-doped GaAs/AlAs superlattices
M. I. Hossain, Z. Ikonic, J. Watson, J. Shao, P. Harrison, M. J. Manfra, and O. Malis.
J. Appl. Phys. 113, 053103 (2013) [PDF]

2012

Near-infrared absorption in lattice-matched AlInN/GaN and Strained AlGaN/GaN heterostructures grown by MBE on low-defect GaN substrates
C. Edmunds, L. Tang, M. Cervantes, G. Gardner, T. Paskova, M. J. Manfra, and O. Malis.
Journal of Electronic Materials 41 5, 881-886 (2012) [PDF]

Exploration of the limits to mobility in two-dimensional hole systems in GaAs/AlGaAs quantum wells
J. D. Watson, S. Mondal, G. Gardner, G. Csathy,and  M. J. Manfra.
Physical Review B 85, 165301 (2012) [PDF]

Magnetoplasmon resonance in a two-dimensional electron system driven into a zero-resistance state
A. T. Hatke, M. A. Zudov, J. D. Watson, and  M. J. Manfra.
Physical Review B 85, 121306(R) (2012) [PDF]

Collective Nature of the Reentrant Integer Quantum Hall States in the Second Landau Level
N. Deng, A. Kumar, M. J. Manfra, L. N. Pfeiffer, K. W. West, and G. Csathy.
Physical Review Letters108, 086803 (2012) [PDF]

Gallium nitride is biocompatible and non-toxic before and after functionalization with peptides
S. A. Jewett, M. S. Makowski, B. Andrews, M. J. Manfra, and A. Ivanisevic.
ACTA BIOMATERIALIA 8, 728-733 (2012) [PDF]

Millimeter wave transmission spectroscopy of gated two-dimensional hole systems
K. Stone, R. R. Du, M. J. Manfra, L. N. Pfeiffer, and K. W. West.
Applied Physics Letters 100, 192104 (2012) [PDF]

Improvement of near-infrared absorption line width in AlGaN/GaN superlattices by optimization of delta-doping location
C. Edmunds, L. Tang, J. Shao, D. Li, M. Cervantes.
Appl. Phys. Lett.101, 102104 (2012) [PDF]

Contrasting energy scales of the reentrant integer quantum Hall states
N. Deng, J. D. Watson, L. P. Rokhinson, M. J. Manfra, and G. A. Csathy.
Phys. Rev. B 86, 201301(R) (2012) [PDF]

Repeatable low-temperature negative-differential resistance fromAl0.18Ga0.82N/GaN resonant tunneling diodes grown by molecular-beam-epitaxy on free-standing GaN substrates
D. Li, L. Tang, C. Edmunds, J. Shao, G. Gardner.
Appl. Phys. Lett. 100, 252105 (2012) [PDF]

2011

Quantitative analysis of the disorder broadening and the intrinsic gap for the ν=5/2 fractional quantum Hall state
N. Samkharadze, J. D. Watson, G. Gardner, M. J. Manfra, L. N. Pfeiffer, K. W. West, and G. Csathy.
Physical Review B 84, 121305 (2011) [PDF]

Scattering mechanisms in a high-mobility low-density carbon-doped (100) GaAs two-dimensional hole system
J. D. Watson, S. Mondal, G. A. Csathy, M. J. Manfra, E. H. Hwang, S. Das Sarma, L. N. Pfeiffer, and K. W. West.
Physical Review B 83, 241305(R) (2011) [PDF]

Particle-hole asymmetry of fractional quantum Hall states in the second Landau level of a two-dimensional hole system
A. Kumar, N. Samkharadze, G. A. Csathy, M. J. Manfra, L. N. Pfeiffer, and K. W. West.
Physical Review B 83, 201305(R) (2011) [PDF]

Integrated electronic transport and thermometry at milliKelvin temperatures and in strong magnetic fields
N. Samkharadze, A. Kumar, M. J. Manfra, L. N. Pfeiffer, K. W. West, and G. A. Csathy.
Review of Scientific Instruments 82, 053902 (2011) [PDF]

Effect of Strain on Stripe Phases in the Quantum Hall Regime
S. P. Koduvayur, Y. Lyanda-Geller, S. Khlebnikov, G. Csathy, M. J. Manfra, L. N. Pfeiffer, K. W. West, L. P. Rokhinson.
Physical Review Letters 106, 016804 (2011) [PDF]

2010

Nonconventional odd-denominator fractional quantum Hall states in the second Landau level
A. Kumar, G. A. Csathy, M. J. Manfra, L. N. Pfeiffer, and K. W. West.
Physical Review Letters 105, 246898 (2010) [PDF]

Intersubband transitions in lattice-matched AlInN/GaN heterostructures
O. Malis, C. Edmunds, D. H. Li, and M. J. Manfra.
2010 18th Biennial University/Government/Industry Micro-Nano Symposium. (2010)

2009

Magnetotransport in Zener tunneling regime in a high-mobility two-dimensional hole gas
Y. Dai, Z. Q. Yuan, C. L. Yang, R. R. Du, M. J. Manfra, L. N. Pfeiffer, and K. W. West.
Physical Review B 80, 041310(R) (2009) [PDF]

Near-infrared intersubband absorption in molecular-beam epitaxy-grown lattice-matched InAlN/GaN superlattices
O. Malis, C. Edmunds, M. J. Manfra, and D. L. Sivco.
Applied Physics Letters 94, 161111 (2009) [PDF]

Landau level spectrum in a two-dimensional hole gas in C-doped (100) GaAs/AlGaAs square quantum well
Z. Q. Yuan, R. R. Du, M. J. Manfra, L. N. Pfeiffer, and K. W. West.
Applied Physics Letters 94, 052103 (2009) [PDF]

2008

Cyclotron mass of two-dimensional holes in (100) oriented GaAs/AlGaAs heterostructures
T. M. Lu, Z. F. Li, D. C. Tsui, M. J. Manfra, L. N. Pfeiffer, and K. W. West.
Applied Physics Letters 92, 012109 (2008) [PDF]

2007

Transport and percolation in a low-density high-mobility two-dimensional hole system
M. J. Manfra, E. H. Hwang, S. Das Sarma, L. N. Pfeiffer, K. W. West, and A. M. Sergent.
Physical Review Letters 99, 236402 (2007) [PDF]

Confinement of fractional quantum Hall states in narrow conducting channels
R. L. Willett, M. J. Manfra, L.N. Pfeiffer, and K.W. West.
Applied Physics Letters 91, 052105 (2007) [PDF]

Mesoscopic structures and two-dimensional hole systems in fully field effect controlled heterostructures
R. L. Willett, M. J. Manfra, L. N. Pfeiffer, and K. W. West.
Applied Physics Letters 91, 033510 (2007) [PDF]

Impact of spin-orbit coupling on quantum Hall nematic phases
M. J. Manfra, R. de Picciotto, Z. Jiang, S. H. Simon, L. N. Pfeiffer, K. W. West, and A. M. Sergent.
Physical Review Letters 98, 206804 (2007) [PDF]

Density and well width dependencies of the effective mass of two-dimensional holes in (100) GaAs quantum wells measured using cyclotron resonance at mircowave frequencies
H. Zhu, K. Lai, D. C. Tsui, S. P. Bayrakci, N. P. Ong, M. Manfra, L. Pfeiffer, and K. West.
Solid State communications 141, 510-513 (2007) [PDF]

Optimized growth of lattice-matched InAlN/GaN heterostructures by molecular beam epitaxy
S. Schmult, T. Siegrist, A. M. Sergent, M. J. Manfra, and R. J. Molnar.
Applied Physics Letters 90, 021922 (2007) [PDF]

High quality UV AlGaN/AlGaN distributed Bragg reflectors and microcavities
O. Mitrofanov, S. Schmult, M. J. Manfra, T. Siegrist, N. G. Weimann, A. M. Sergent, and R. J. Molnar.
SPIE Vol. 6473, 64731G (2007) [PDF]

Charge trapping on defects in AlGaN/GaN field effect transistors
O. Mitrofanov and M. J. Manfra.
SPIE 6473, 64731M (2007) [PDF]

2006

Splitting of the cyclotron resonance in two-dimensional electron systems
E. A. Henriksen, S. Syed, Y. J. Wang, M. J. Manfra, L. N. Pfeiffer, K. W. West, and H. L. Stormer.
Physica E 34 1-2, 318-320 (2006) [PDF]

Single-electron transistors in GaN/AlGaN heterostructures
H. T. Chou, D. Goldhaber-Gordon, S. Schmult, M. J. Manfra, A. M. Sergent, R. J. Molnar.
Applied Physics Letters 89, 033104 (2006) [PDF]

Large Bychkov-Rashba spin-orbit coupling in high-mobility GaN/AlxGa1-xN heterostructures
S. Schmult, M. J. Manfra, A. Punnoose, A. M. Sergent, K. W. Baldwin, and R. J. Molnar.
Physical Review B 74, 033302 (2006) [PDF]

Quantum transport in high mobility AlGaN/GaN 2DEGs and nanostructures
S. Schmult, M. J. Manfra, A. M. Sergent, A. Punnoose, H. T. Chou, D. Goldhaber-Gordon, and R. J. Molnar.
Physica Status Solidi B 243 7, 1706-1712 (2006) [PDF]

High-reflectivity ultraviolet AlGaN/AlGaN distributed Bragg reflectors
O. Mitrofanov, S. Schmult, M. J. Manfra, T. Siegrist, N. G. Weimann, A. M. Sergent, and R. J. Molnar.
Applied Physical Letters 88, 171101 (2006) [PDF]

2005

Acoustic phonon scattering in a low density, high mobility AlGaN/GaN field-effect transistor
E. A. Henriksen, S. Syed, Y. Ahmadian, M. J. Manfra, K. W. Baldwin, A. M. Sergent, R. J. Molnar, and H. L. Stormer.
Applied Physics Letters 86, 252108 (2005) [PDF]

High mobility two-dimensional hole system in GaAs/AlGaAs quantum wells grown on (100) GaAs substrates
M. J. Manfra, L. N. Pfeiffer, K. W. West, R. de Picciotto, and K. W. Baldwin.
Applied Physics Letters 86, 162106 (2005) [PDF]

High-quality quantum point contacts in GaN/AlGaN heterostructures
H. T. Chou, S. Luscher, D. Goldhaber-Gordon, M. J. Manfra, A. M. Sergent, K. W. West, and R. J. Molnar.
Applied Physics Letters 86, 073108 (2005) [PDF]

2004

Large cyclotron-resonance line splitting of two-dimensional electrons in AlGaN/GaN and AlGaAs/GaAs heterostructures
S. Syed, Y. J. Wang, H. L. Stormer, M. J. Manfra, L. N. Pfeiffer, K. W. West, and R. Molnar.
International Journal of Modern Physics B 18 27, 3761-3768 (2004) [PDF]

Electron mobility exceeding 160000 cm2/V s in AlGaN/GaN heterostructures grown by molecular-beam epitaxy
M. J. Manfra, K. W. Baldwin, A. M. Sergent, K. W. West, R. J. Molnar, and J. Caissie.
Applied Physics Letters 85, 22 5394-5396 (2004) [PDF]

Quantum and transport lifetimes in a tunable low-density AlGaN/GaN two-dimensional electron gas
M. J. Manfra, S. H. Simon, K. W. Baldwin, A. M. Sergent, K. W. West, R. J. Molnar, and J. Caissie.
Applied Physics Letters 85, 22 5278-5280 (2004) [PDF]

Electron mobility in very low density GaN/AlGaN/GaN heterostructures
M. J. Manfra, K. W. Baldwin, A. M. Sergent, R. J. Molnar, and J. Caissie.
Applied Physics Letters 85, 10 1722-1724 (2004) [PDF]

Poole-Frenkel electron emission from the traps in AlGaN/GaN transistors
O. Mitrofanov and M. J. Manfra.
Journal of Applied Physics 95, 11 6414-6419 (2004) [PDF]

Electron scattering in AlGaN/GaN structures
S. Syed, M. J. Manfra, Y. J. Wang, R. J. Molnar, and H. L. Stormer.
Applied Physics Letters 84 9, 1507-1509 (2004) [PDF]

Dynamics of trapped charge in GaN/AlGaN/GaN high electron mobility transistors grown by plasma-assisted molecular beam epitaxy
O. Mitrofanov and M. J. Manfra.
Applied Physics Letters84 3, 422-424 (2004) [PDF]

2003

Nonparabolicity of the conduction band of wurtzite GaN
S. Syed, J. B. Heroux, Y. J. Wang, M. J. Manfra, R. J. Molnar, and H. L. Stormer.
Applied Physics Letters 83 22, 4553-4555 (2003) [PDF]

Effect of dislocations on local transconductance in AlGaN/GaN heterostructures as imaged by scanning gate microscopy
J. W. P. Hsu, N. G. Weimann, M. J. Manfra, K. W. West, D. V. Lang, F. F. Schrey, O. Mitrofanov, and R. J. Molnar.
Applied Physics Letters 83 22, 4559-4561 (2003) [PDF]

High power GaN/AlGaN/GaN HEMTs operating at 2 to 25 GHz grown by plasma-assisted MBE
M. J. Manfra, N. G. Weimann, O. Mitrofanov, T. Waechtler, and D. M. Tennant.
Physica Status Solidi A-Applied Research 200 1, 175-178 (2003) [PDF]

Mechanisms of gate lag in GaN/AlGaN/GaN high electron mobility transistors
O. Mitrofanov and M. J. Manfra.
Superlattices and Microstructures 34 1-2, 33-53 (2003) [PDF]

Large splitting of the cyclotron-resonance line in AlxGa1-xN/GaN heterostructures
S. Syed, M. J. Manfra, Y. J. Wang, H. L. Stormer, and R. J. Molnar.
Physical Review B 64, 241304 (2003)

Impact of Si doping on radio frequency dispersion in unpassivated GaN/AlGaN/GaN high-electron-mobility transistors grown by plasma-assisted molecular-beam epitaxy
O. Mitrofanov, M. J. Manfra, and N. Weimann.
Applied Physics Letters 82 24, 4361-4363 (2003) [PDF]

Unpassivated AlGaN/GaN HEMTs with CW power density of 3.2 W/mm at 25 GHz grown by plasma-assisted MBE
M. J. Manfra, N. Weimann, Y. Baeyens, P. Roux, and D. M. Tennant.
Electronic Letters 39 8, 694-695 (2003) [PDF]

Unpassivated AlGaN-GaN HEMTs with minimal RF dispersion grown by plasma-assisted MBE on semi-insulating 6H-SiC substrates
N. G. Weimann, M. J. Manfra, and T. Wachtler.
IEEE Electron Device Letters 24 2, 57-59 (2003) [PDF]

2002

AlGaN/GaN HEMTs grown by molecular beam epitaxy on sapphire, 6H-SiC, and HVPE-GaN templates
N. G. Weimann, M. J. Manfra, J. W. P. Hsu, K. Baldwin, L. N. Pfeiffer, W. West, S. N. G. Chu, D. V. Lang, and R. J. Molnar.
Compound Semiconductors 2002 174, 223-226 (2002) [PDF]

Submicron AlGaN/GaN HEMTs with very high drain current density grown by plasma-assisted MBE on 6H-SiC
N. G. Weimann, M. J. Manfra, S. Chakraborty, and D. A. Tennant.
IEEE Electron Device Letters 23 12, 691-693 (2002) [PDF]

Dislocation and morphology control during molecular-beam epitaxy of AlGaN/GaN heterostructures directly on sapphire substrates
M. J. Manfra, N. G. Weimann, J. W. P. Hsu, L. N. Pfeiffer, K. W. West, and S. N. G. Chu.
Applied Physics Letters 81 8, 1456-1458 (2002) [PDF]

Direct imaging of reverse-bias leakage through pure screw dislocations in GaN films grown by molecular beam epitaxy on GaN templates
J. W. P. Hsu, M. J. Manfra, R. J. Molnar, B. Heying, and J. S. Speck.
Applied Physics Letters 81 1, 79-81 (2002) [PDF]

High mobility AlGaN/GaN heterostructures grown by plasma-assisted molecular beam epitaxy on semi-insulating GaN templates prepared by hydride vapor phase epitaxy
M. J. Manfra, N. G. Weimann, J. W. P. Hsu, L. N. Pfeiffer, K. W. West, S. Syed, H. L. Stormer, W. Pan, D. V. Lang, S. N. G. Chu, G. Kowach, A. M. Sergent, J. Caissie, K. M. Molvar, L. J. Mahoney, and R. J. Molnar.
Journal of Applied Physics 92 1, 338-345 (2002) [PDF]

AlGaN/GaN HEMTs grown by molecular beam epitaxy on sapphire, SiC, and HVPE GaN templates
N.G. Weimann, J. W. P. Hsu, K. Baldwin, L. N. Pfeiffer, K. W. West, S. N. G. Chu, D. V. Lang, and R. J. Molnar.
IEEE Lester Eastman Conference on High Performance Devices, 126-133 (2002) [PDF]

2001

Effect of growth stoichiometry on the electrical activity of screw dislocations in GaN films grown by molecular-beam epitaxy
J. W. P. Hsu, M. J. Manfra, S. N. G. Chu, C. H. Chen, L. N. Pfeiffer, and R. J. Molnar.
Applied Physics Letters 78 25, 3980-3982 (2001) [PDF]

Inhomogeneous spatial distribution of reverse bias leakage in GaN Schottky diodes
J. W. P. Hsu, M. J. Manfra, D. V. Lang, S. Richter, S. N. G. Chu, A. M. Sergent, R. N. Kleinman, L. N. Pfeiffer, and R. J. Molnar.
Applied Physics Letters 78 12, 1685-1687 (2001) [PDF]

Surface morphology and electronic properties of dislocations in AlGaN/GaN heterostructures
J. W. P. Hsu, M. J. Manfra, D. V. Lang, K. W. Baldwin, L. N. Pfeiffer, and R. J. Molnar.
Journal of Electronic Materials 30 3, 110-114 (2001) [PDF]

2000

High-mobility AlGaN/GaN heterostructures grown by molecular-beam epitaxy on GaN templates prepared by hydride vapor phase epitaxy
M. J. Manfra, L. N. Pfeiffer, K. W. West, H. L. Stormer, K. W. Baldwin, J. W. P. Hsu, D. V. Lang, and R. J. Molnar.
Applied Physics Letters 77 18, 2888-2890 (2000) [PDF]

Absorption spectroscopy in electron double layers: evidence for broken symmetry states
M. J. Manfra, B. B. Goldberg, J. C. Pniower, A. Pinczuk, V Pelligrini, L. N. Pfeiffer, and K. W. West.
Physica A 6 1-4, 590-593 (2000) [PDF]

1998

Absorption spectroscopy of charged spin texture excitations at ν=1
B. B. Goldberg, M. J. Manfra, L. Pfeiffer, and K. West.
Physica B 251, 7-14 (1998) [PDF]

Anderson-Fano resonance and shake-up processes in the magnetophotoluminescence of a two-dimensional electron system
M. J. Manfra, B. B. Goldberg, L. Pfeiffer, and K. West.
Physical Review B 57 16, R9467-R9470 (1998) [PDF]

1997

Optical determination of the spin polarization of a quantum Hall ferromagnet
M. J. Manfra, B. B. Goldberg, L. Pfeiffer, and K. West.
Physica E 1 1-4, 28-35 (1997) [PDF]

Skyrmions and the ν=1 quantum Hall ferromagnet
M. J. Manfra, B. B. Goldberg, L. Pfeiffer, and K. West.
Acta Physica Polonica A 92 4, 621-632 (1997)

1996

Temperature dependence of the spin polarization of a quantum Hall ferromagnet
M. J. Manfra, E. H. Aifer, B. B. Goldberg, D. A. Broido, L. Pfeiffer, and K. West.
Physical Review B 54 24, 17327-17330 (1996) [PDF]

1994

Reactive ion etching of GaN thin-films
M. Manfra, S. Berkowitz, R. Molnar, A. Clark, T. D. Moustakas, and W. J. Skocpol.
Diagnostic Techniques for Semiconductor Materials Processing 324, 477-480 (1994) [PDF]