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Theory of magnetotransport in shaped topological insulator nanowires

Graf, Ansgar ; Kozlovsky, Raphael ; Richter, Klaus ; Gorini, Cosimo



Abstract

It is demonstrated that shaped topological insulator (TI) nanowires, i.e., such that their cross-section radius varies along the wire length, can be tuned into a number of different transport regimes when immersed in a homogeneous coaxial magnetic field. This is in contrast with widely studied tubular nanowires with constant cross section, and is due to magnetic confinement of Dirac surface ...

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