Journal
ADVANCED MATERIALS
Volume 29, Issue 3, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201604185
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Funding
- Austrian Science Funds [SFB 025-IRON]
- EU CALIPSO Program [312284]
- Polish National Science Center [2013/11/B/ST3/03934, 2014/15/B/ST3/03833]
- Deutsche Forschingsgemeinschaft [SPP 1666]
- Impuls-und Vernetzungsfonds der Helmholtz-Gemeinschaft [HRJRG-408]
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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-xSnxTe (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.
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