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Title: Quantum oscillations in magnetothermopower measurements of topological insulator Bi 2Te 3

Abstract

We report the magnetothermopower measurements of the nonmetallic topological insulator Bi2Te3 in magnetic fields up to 35 T. Quantum oscillations arising from surface states are observed in both thermoelectric and conductivity tensors. The inferred surface thermopower has a peak magnitude ~1 mV/K possibly as a result of surface electron and bulk phonon interaction. At the n = 1 Landau level, we resolve additional quantum oscillations signaling Landau sublevels.

Authors:
 [1];  [2];  [3]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Univ. of Science and Technology, Rolla, MO (United States)
  3. Princeton Univ., Princeton, NJ (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1244661
Report Number(s):
LLNL-JRNL-594632
Journal ID: ISSN 0031-9007; PRLTAO
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 109; Journal Issue: 24; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Qu, Dong -Xia, Hor, Y. S., and Cava, R. J. Quantum oscillations in magnetothermopower measurements of topological insulator Bi2Te3. United States: N. p., 2012. Web. doi:10.1103/PhysRevLett.109.246602.
Qu, Dong -Xia, Hor, Y. S., & Cava, R. J. Quantum oscillations in magnetothermopower measurements of topological insulator Bi2Te3. United States. doi:10.1103/PhysRevLett.109.246602.
Qu, Dong -Xia, Hor, Y. S., and Cava, R. J. Mon . "Quantum oscillations in magnetothermopower measurements of topological insulator Bi2Te3". United States. doi:10.1103/PhysRevLett.109.246602. https://www.osti.gov/servlets/purl/1244661.
@article{osti_1244661,
title = {Quantum oscillations in magnetothermopower measurements of topological insulator Bi2Te3},
author = {Qu, Dong -Xia and Hor, Y. S. and Cava, R. J.},
abstractNote = {We report the magnetothermopower measurements of the nonmetallic topological insulator Bi2Te3 in magnetic fields up to 35 T. Quantum oscillations arising from surface states are observed in both thermoelectric and conductivity tensors. The inferred surface thermopower has a peak magnitude ~1 mV/K possibly as a result of surface electron and bulk phonon interaction. At the n = 1 Landau level, we resolve additional quantum oscillations signaling Landau sublevels.},
doi = {10.1103/PhysRevLett.109.246602},
journal = {Physical Review Letters},
number = 24,
volume = 109,
place = {United States},
year = {2012},
month = {12}
}

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