Original paper
Current-Induced Gap Opening in Interacting Topological Insulator Surfaces
Abstract
Two-dimensional topological insulators (TIs) host gapless helical edge states that are predicted to support a quantized two-terminal conductance. Quantization is protected by time-reversal symmetry, which forbids elastic backscattering. Paradoxically, the current-carrying state itself breaks the time-reversal symmetry that protects it. Here we show that the combination of electron-electron interactions and momentum-dependent spin polarization in...
Paper Details
Title
Current-Induced Gap Opening in Interacting Topological Insulator Surfaces
Published Date
Dec 11, 2019
Journal
Volume
123
Issue
24
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Notes
History