DOI: 10.1103/physrevlett.122.196601
View full text
Luis M. Canonico, Tatiana G. Rappoport, R. B. Muniz

Abstract: The fabrication of bismuthene on top of SiC paved the way for substrate engineering of room temperature quantum spin Hall insulators made of group V atoms. We perform large-scale quantum transport calculations in these 2d materials to analyse the rich phenomenology that arises from the interplay between topology, disorder, valley and spin degrees of freedom. For this purpose, we consider a minimal multi-orbital real-space tight-binding Hamiltonian and use a Chebyshev polynomial expansion technique. We discuss…

expand abstract