Failure of Conductance Quantization in Two-Dimensional Topological Insulators due to Nonmagnetic Impurities
Abstract
Despite topological protection and the absence of magnetic impurities, two-dimensional topological insulators display quantized conductance only in surprisingly short channels, which can be as short as 100 nm for atomically thin materials. We show that the combined action of short-range nonmagnetic impurities located near the edges and on site electron-electron interactions effectively creates noncollinear magnetic scatterers, and, hence,...
Paper Details
Title
Failure of Conductance Quantization in Two-Dimensional Topological Insulators due to Nonmagnetic Impurities
Published Date
Jan 2, 2019
Journal
Volume
122
Issue
1
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