Topologization of β-antimonene on Bi
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
03 Sep 2020
03 Sep 2020
Historique:
received:
17
06
2020
accepted:
19
08
2020
entrez:
5
9
2020
pubmed:
5
9
2020
medline:
5
9
2020
Statut:
epublish
Résumé
Topological surface states usually emerge at the boundary between a topological and a conventional insulator. Their precise physical character and spatial localization depend on the complex interplay between the chemical, structural and electronic properties of the two insulators in contact. Using a lattice-matched heterointerface of single and double bilayers of β-antimonene and bismuth selenide, we perform a comprehensive experimental and theoretical study of the chiral surface states by means of microscopy and spectroscopic measurements complemented by first-principles calculations. We demonstrate that, although β-antimonene is a trivial insulator in its free-standing form, it inherits the unique symmetry-protected spin texture from the substrate via a proximity effect that induces outward migration of the topological state. This "topologization" of β-antimonene is found to be driven by the hybridization of the bands from either side of the interface.
Identifiants
pubmed: 32884112
doi: 10.1038/s41598-020-71624-4
pii: 10.1038/s41598-020-71624-4
pmc: PMC7471962
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
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