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Title: Three-dimensional topological insulators Bi{sub 2}Te{sub 3}, Bi{sub 2}Se{sub 3}, and Bi{sub 2}Te{sub 2}Se - a microwave spectroscopy study

Abstract

We present results of investigations of three-dimensional topological insulators from a family of bismuth compounds performed in electron spin resonance spectrometer. Next to the standard spin resonance spectra in Bi{sub 2}Se{sub 3} originating from bulk conduction electrons (g{sub Verbar;} = 27.5 ± 0.1 and g{sub ⊥} = 19.5 ± 0.1), we observed also cyclotron resonance due to topological surface states in Bi{sub 2}Te{sub 3} and non-resonant signal related to weak anti-localization in Bi{sub 2}Te{sub 2}Se. The analysis of the cyclotron resonance signal yields low Fermi velocity equal to 3250 m/s in Bi{sub 2}Te{sub 3}. The phase coherence length determined from weak anti-localization signal equals to 550 nm at low temperatures in Bi{sub 2}Te{sub 2}Se. Relation of the signals to bulk, topological surface or two-dimensional quantum well states is discussed and where possible indicated.

Authors:
 [1]; ; ;  [2]; ; ; ;  [3]
  1. Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668 Warsaw, Poland and Faculty of Physics, University of Warsaw, ul Hoza 69, 00-681 Warsaw (Poland)
  2. Faculty of Physics, University of Warsaw, ul Hoza 69, 00-681 Warsaw (Poland)
  3. Institute of Electronic Materials Technology, ul. Wolczynska 133, 01-919 Warsaw (Poland)
Publication Date:
OSTI Identifier:
22261779
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1566; Journal Issue: 1; Conference: ICPS 2012: 31. international conference on the physics of semiconductors, Zurich (Switzerland), 29 Jul - 3 Aug 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BISMUTH SELENIDES; BISMUTH TELLURIDES; COHERENCE LENGTH; CYCLOTRON RESONANCE; ELECTRON SPIN RESONANCE; QUANTUM WELLS; SIGNALS; SPECTROSCOPY

Citation Formats

Wolos, A., Drabinska, A., Szyszko, S., Kaminska, M., Strzelecka, S. G., Hruban, A., Materna, A., and Piersa, M. Three-dimensional topological insulators Bi{sub 2}Te{sub 3}, Bi{sub 2}Se{sub 3}, and Bi{sub 2}Te{sub 2}Se - a microwave spectroscopy study. United States: N. p., 2013. Web. doi:10.1063/1.4848353.
Wolos, A., Drabinska, A., Szyszko, S., Kaminska, M., Strzelecka, S. G., Hruban, A., Materna, A., & Piersa, M. Three-dimensional topological insulators Bi{sub 2}Te{sub 3}, Bi{sub 2}Se{sub 3}, and Bi{sub 2}Te{sub 2}Se - a microwave spectroscopy study. United States. doi:10.1063/1.4848353.
Wolos, A., Drabinska, A., Szyszko, S., Kaminska, M., Strzelecka, S. G., Hruban, A., Materna, A., and Piersa, M. Wed . "Three-dimensional topological insulators Bi{sub 2}Te{sub 3}, Bi{sub 2}Se{sub 3}, and Bi{sub 2}Te{sub 2}Se - a microwave spectroscopy study". United States. doi:10.1063/1.4848353.
@article{osti_22261779,
title = {Three-dimensional topological insulators Bi{sub 2}Te{sub 3}, Bi{sub 2}Se{sub 3}, and Bi{sub 2}Te{sub 2}Se - a microwave spectroscopy study},
author = {Wolos, A. and Drabinska, A. and Szyszko, S. and Kaminska, M. and Strzelecka, S. G. and Hruban, A. and Materna, A. and Piersa, M.},
abstractNote = {We present results of investigations of three-dimensional topological insulators from a family of bismuth compounds performed in electron spin resonance spectrometer. Next to the standard spin resonance spectra in Bi{sub 2}Se{sub 3} originating from bulk conduction electrons (g{sub Verbar;} = 27.5 ± 0.1 and g{sub ⊥} = 19.5 ± 0.1), we observed also cyclotron resonance due to topological surface states in Bi{sub 2}Te{sub 3} and non-resonant signal related to weak anti-localization in Bi{sub 2}Te{sub 2}Se. The analysis of the cyclotron resonance signal yields low Fermi velocity equal to 3250 m/s in Bi{sub 2}Te{sub 3}. The phase coherence length determined from weak anti-localization signal equals to 550 nm at low temperatures in Bi{sub 2}Te{sub 2}Se. Relation of the signals to bulk, topological surface or two-dimensional quantum well states is discussed and where possible indicated.},
doi = {10.1063/1.4848353},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1566,
place = {United States},
year = {2013},
month = {12}
}