An elemental ferroelectric topological insulator in ψ-bismuthene
Xuening Han,
Fulu Zheng,
Thomas Frauenheim
et al.
Abstract:Ferroelectric quantum spin Hall insulator (FEQSHI) exhibits coexisting ferroelectricity and time-reversal symmetry protected edge states, holding exciting prospects for inviting both scientific and application advances, particularly in two-dimensional systems. However,...
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