Title

Quantum Oscillations in Magnetothermopower Measurements of the Topological Insulator Bi2Te3

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.

Department(s)

Physics

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.

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