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Theory of magnetotransport in shaped topological insulator nanowires

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Graf, Ansgar ; Kozlovsky, Raphael ; Richter, Klaus ; Gorini, Cosimo
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arXiv PDF (28.05.2020)
Date of publication of this fulltext: 09 Jun 2020 05:47


We show 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 carriers. In flat ...


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