On the morphology of the interlayer surface and micro-Raman spectra of layered films in topological insulators based on bismuth telluride
- Authors: Lukyanova L.N.1, Bibik A.Y.2, Aseev V.A.2, Usov O.A.1, Makarenko I.V.1, Petrov V.N.1, Nikonorov N.V.2
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Affiliations:
- Ioffe Institute
- St. Petersburg State University of Information Technologies, Mechanics, and Optics
- Issue: Vol 51, No 6 (2017)
- Pages: 729-731
- Section: XV International Conference “Thermoelectrics and Their Applications—2016”, St. Petersburg, November 15–16, 2016
- URL: https://journals.rcsi.science/1063-7826/article/view/200032
- DOI: https://doi.org/10.1134/S1063782617060197
- ID: 200032
Cite item
Abstract
Resonant micro-Raman spectra and the morphology of the interlayer Van der Waals surface are studied for layered thin films of n-Bi2Te3 and solid solutions based on Bi2Te3. It is found that the composition, thickness, surface morphology, and the method of obtaining films affect the relative intensity of Raman phonons, which are sensitive to the topological surface states of Dirac fermions.
About the authors
L. N. Lukyanova
Ioffe Institute
Author for correspondence.
Email: lidia.lukyanova@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
A. Yu. Bibik
St. Petersburg State University of Information Technologies, Mechanics, and Optics
Email: lidia.lukyanova@mail.ioffe.ru
Russian Federation, St. Petersburg, 197101
V. A. Aseev
St. Petersburg State University of Information Technologies, Mechanics, and Optics
Email: lidia.lukyanova@mail.ioffe.ru
Russian Federation, St. Petersburg, 197101
O. A. Usov
Ioffe Institute
Email: lidia.lukyanova@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
I. V. Makarenko
Ioffe Institute
Email: lidia.lukyanova@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
V. N. Petrov
Ioffe Institute
Email: lidia.lukyanova@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
N. V. Nikonorov
St. Petersburg State University of Information Technologies, Mechanics, and Optics
Email: lidia.lukyanova@mail.ioffe.ru
Russian Federation, St. Petersburg, 197101