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Sublattice effect on topological surface states in complex (SnTe)n>1(Bi2 Te3)m=1 compounds

AuthorsEremeev, S. V.; Menshchikova, Tatiana V.; Silkin, Igor V.; Vergniory, M.; Echenique, Pedro M. CSIC; Chulkov, Eugene V. CSIC ORCID
Issue Date2015
PublisherAmerican Physical Society
CitationPhysical Review B 91(24): 245145 (2015)
AbstractAn exotic type of topological spin-helical surface state was found in layered van der Waals bonded (SnTe)n=2,3(Bi2Te3)m=1 compounds which comprise two covalently bonded band inverted sublattices, SnTe and Bi2Te3, within a building block. This topological state demonstrates unusual dispersion within the band gap. The dispersion of the surface state has two linear sections of different slope with a shoulder feature between them. Such a dispersion of the topological surface state enables an effective switch of the velocity of topological carriers by means of applying an external electric field.
DescriptionUnder the terms of the Creative Commons Attribution License 3.0 (CC-BY).
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.91.245145
Identifiersdoi: 10.1103/PhysRevB.91.245145
issn: 2469-9950
e-issn: 2469-9969
Appears in Collections:(CFM) Artículos
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