%0 Journal Article
%T Quantum spin Hall insulator with a large bandgap, Dirac fermions, and bilayer graphene analog
%+ Laboratoire Charles Coulomb (L2C)
%A Krishtopenko, Sergey S.
%A Teppe, Frederic
%< avec comité de lecture
%Z L2C:18-100
%@ 2375-2548
%J Science Advances
%I American Association for the Advancement of Science (AAAS)
%V 4
%N 4
%P eaap7529
%8 2018-04
%D 2018
%R 10.1126/sciadv.aap7529
%Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Journal articles
%X The search for room temperature quantum spin Hall insulators (QSHIs) based on widely available materials and a controlled manufacturing process is one of the major challenges of today’s topological physics. We propose a new class of semiconductor systems based on multilayer broken-gap quantum wells, in which the QSHI gap reaches 60 meV and remains insensitive to temperature. Depending on their layer thicknesses and geometry, these novel structures also host a graphene-like phase and a bilayer graphene analog. Our theoretical results significantly extend the application potential of topological materials based on III–V semiconductors.
%G English
%2 https://hal.science/hal-01830515/document
%2 https://hal.science/hal-01830515/file/eaap7529.full.pdf
%L hal-01830515
%U https://hal.science/hal-01830515
%~ CNRS
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021