| Literature DB >> 27859857 |
Valentine V Volobuev1,2, Partha S Mandal3, Marta Galicka4, Ondřej Caha5, Jaime Sánchez-Barriga3, Domenico Di Sante6,7, Andrei Varykhalov3, Amir Khiar1, Silvia Picozzi6, Günther Bauer1, Perla Kacman4, Ryszard Buczko4, Oliver Rader3, Gunther Springholz1.
Abstract
The topological properties of lead-tin chalcogenide topological crystalline insulators can be widely tuned by temperature and composition. It is shown that bulk Bi doping of epitaxial Pb1-x Snx Te (111) films induces a giant Rashba splitting at the surface that can be tuned by the doping level. Tight binding calculations identify their origin as Fermi level pinning by trap states at the surface.Entities:
Keywords: IV-VI semiconductors; Rashba effect; crystalline insulators; molecular beam epitaxy; photoemission spectroscopy
Year: 2016 PMID: 27859857 DOI: 10.1002/adma.201604185
Source DB: PubMed Journal: Adv Mater ISSN: 0935-9648 Impact factor: 30.849