Quantum Oscillations in Magnetothermopower Measurements of the Topological Insulator Bi₂Te₃

Author

Dongxia Qu
Yew San Hor, Missouri University of Science and TechnologyFollow
Robert Joseph Cava

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 ~1mV/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.

Recommended Citation

D. Qu et al., "Quantum Oscillations in Magnetothermopower Measurements of the Topological Insulator Bi₂Te₃," Physical Review Letters, vol. 109, no. 24, American Physical Society (APS), Dec 2012.

The definitive version is available at https://doi.org/10.1103/PhysRevLett.109.246602

Department(s)

Physics

Comments

This article is corrected by Erratum: Quantum Oscillations in Magnetothermopower Measurements of the Topological Insulator Bi₂Te₃.

Keywords and Phrases

Conductivity Tensors; Landau Levels; Magneto-thermopower; Phonon Interactions; Quantum Oscillations; Surface Electron; Topological Insulators; Atomic Physics; Physics; Electric Insulators

International Standard Serial Number (ISSN)

0031-9007

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2012 American Physical Society (APS), All rights reserved.

Publication Date

01 Dec 2012