Surface state dominated transport in topological insulator Bi 2Te3 nanowires

Hamdou B, Gooth J, Dorn A, Pippel E, Nielsch K (2013)

Publication Type: Journal article

Publication year: 2013

Journal

Applied Physics Letters American Institute of Physics (AIP)

Book Volume: 103

Article Number: 193107

Journal Issue: 19

DOI: 10.1063/1.4829748

Abstract

We report on low temperature magnetoresistance measurements on single-crystalline Bi2Te3 nanowires synthesized via catalytic growth and post-annealing in a Te-rich atmosphere. The observation of Aharonov-Bohm oscillations indicates the presence of topological surface states. Analyses of Subnikov-de Haas oscillations in perpendicular magnetoresistance yield extremely low two-dimensional carrier concentrations and effective electron masses, and very high carrier mobilities. All our findings are in excellent agreement with theoretical predictions of massless Dirac fermions at the surfaces of topological insulators. © 2013 AIP Publishing LLC.

Involved external institutions

Universität Hamburg (UHH) DE Germany (DE) Max-Planck-Institut für Mikrostrukturphysik (MSP) / Max Planck Institute for Microstructure Physics DE Germany (DE)

How to cite

APA:

Hamdou, B., Gooth, J., Dorn, A., Pippel, E., & Nielsch, K. (2013). Surface state dominated transport in topological insulator Bi 2Te3 nanowires. Applied Physics Letters, 103(19). https://dx.doi.org/10.1063/1.4829748

MLA:

Hamdou, Bacel, et al. "Surface state dominated transport in topological insulator Bi 2Te3 nanowires." Applied Physics Letters 103.19 (2013).

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