Resolving the Dirac cone on the surface of Bi2Te3 topological insulator nanowires by field-effect measurements

Gooth J, Hamdou B, Dorn A, Zierold R, Nielsch K (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Applied Physics Letters American Institute of Physics (AIP)

Book Volume: 104

Article Number: 243115

Journal Issue: 24

DOI: 10.1063/1.4883887

Abstract

We validate the linear dispersion relation (Dirac cone) on the surface of a single Bi2Te3 nanowire via a combination of field-effect and magnetoresistance measurements by which we unambiguously prove the topological insulator nature of the nanowire surface states. Moreover, we show that the experimentally determined carrier concentration, mobility, and cyclotron mass of the surface states are in excellent agreement with relativistic models. Our method provides a facile way to identify topological insulators that too small for angle-resolved photoemission spectroscopy. © 2014 AIP Publishing LLC.

Involved external institutions

Universität Hamburg (UHH) DE Germany (DE)

How to cite

APA:

Gooth, J., Hamdou, B., Dorn, A., Zierold, R., & Nielsch, K. (2014). Resolving the Dirac cone on the surface of Bi2Te3 topological insulator nanowires by field-effect measurements. Applied Physics Letters, 104(24). https://dx.doi.org/10.1063/1.4883887

MLA:

Gooth, Johannes, et al. "Resolving the Dirac cone on the surface of Bi2Te3 topological insulator nanowires by field-effect measurements." Applied Physics Letters 104.24 (2014).

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