In-surface confinement of topological insulator nanowire surface states

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   [PDF]