Volume 134, Number 3, May 2021
|Number of page(s)||4|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||14 July 2021|
Edge state magnetoresistance of a two-dimensional topological insulator
Institute of Semiconductor Physics - 630090 Novosibirsk, Russia and Novosibirsk State University - 630090 Novosibirsk, Russia
Received: 28 January 2021
Accepted: 22 March 2021
The magnetoresistance theory of the edge state of a two-dimensional topological insulator is developed. The magnetic field violates the time reversal invariance. Magnetoresistance arises due to the energy gap opened by a magnetic field. The combined action of impurities and magnetic field causes the backscattering of edge electrons. Although impurities are necessary for scattering, a sufficiently strong interaction with impurities leads to backscattering suppression.
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