Surface phonons in topological insulator Bi2Te3 investigated by Brillouin light scattering-Reference-Cited by-同舟云学术

Surface phonons in topological insulator Bi2Te3 investigated by Brillouin light scattering

Published:2020-07-16 Issue:1 Volume:10 Page:
ISSN:2045-2322
Container-title:Scientific Reports
language:en
Short-container-title:Sci Rep

Author:

Trzaskowska Aleksandra,Mroz Boguslaw

Abstract

AbstractHigh resolution Brillouin spectroscopy was used for the first time to study the dispersion and anisotropy of surface phonons in the single crystal of topological insulator Bi2Te3. Two surface acoustic waves have been observed, which distinguishes this material from other metals or nontransparent materials. The modes were assigned as Rayleigh waves. The obtained results were then simulated by Finite Element Method. The layered structure of the unit cell proposed in simulation reproduced quite well experimental results of the modes dispersion and anisotropy.

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

Link

http://www.nature.com/articles/s41598-020-68690-z.pdf

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