Sublattice effect on topological surface states in complex (SnTe)n>1(Bi2Te3)m=1 compounds

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Sublattice effect on topological surface states in complex (SnTe)n>1(Bi2Te3)m=1 compounds	896 KB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.1103/PhysRevB.91.245145

Title: Sublattice effect on topological surface states in complex (SnTe)n>1(Bi2Te3)m=1 compounds
Creator: Eremeev, Sergey V.
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Silkin, I. V.
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Vergniory, M. G.
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Echenique, Pedro Miguel
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Chulkov, Evgueni V.
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Menshchikova, Tatiana V.
Date: 2015
DOI: 10.1103/PhysRevB.91.245145
Description: An 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.

Created: 20-06-2017

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Научное управление Sublattice effect on topological surface states in complex (SnTe)n>1(Bi2Te3)m=1 compounds