The role of spin-orbit coupling in topologically protected interface states in Dirac materials
2014 (English)In: New Journal of Physics, ISSN 1367-2630, Vol. 16, 065012- p.Article in journal (Refereed) Published
We highlight the fact that two-dimensional (2D) materials with Dirac-like low energy band structures and spin-orbit coupling (SOC) will produce linearly dispersing topologically protected Jackiw-Rebbi modes at interfaces where the Dirac mass changes sign. These modes may support persistent spin or valley currents parallel to the interface, and the exact arrangement of such topologically protected currents depends crucially on the details of the SOC in the material. As examples, we discuss buckled 2D hexagonal lattices such as silicene or germanene, and transition metal dichalcogenides such as MoS2.
Place, publisher, year, edition, pages
2014. Vol. 16, 065012- p.
Dirac materials, interface states, persistent currents, topological protection
Other Physics Topics
IdentifiersURN: urn:nbn:se:kth:diva-149217DOI: 10.1088/1367-2630/16/6/065012ISI: 000339085200001ScopusID: 2-s2.0-84903554842OAI: oai:DiVA.org:kth-149217DiVA: diva2:738516
FunderEU, European Research Council, DM-321031
QC 201408182014-08-182014-08-182014-08-18Bibliographically approved