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arXiv · 1212.6464

Magneto-resistance up to 60 Tesla in Topological Insulator Bi2Te3 Thin Films

S. X. Zhang·R. D. McDonald·A. Shekhter·Z. X. Bi·Y. Li·Q. X. Jia·S. T. Picraux
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Abstract

We report magneto-transport studies of topological insulator Bi_{2}Te_{3} thin films grown by pulsed laser deposition. A non-saturating linear-like magneto-resistance (MR) is observed at low temperatures in the magnetic field range from a few Tesla up to 60 Tesla. We demonstrate that the strong linear-like MR at high field can be well understood as the weak antilocalization phenomena described by Hikami-Larkin-Nagaoka theory. Our analysis suggests that in our system, a topological insulator, the elastic scattering time can be longer than the spin-orbit scattering time. We briefly discuss our results in the context of Dirac Fermion physics and 'quantum linear magnetoresistance'.

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S. X. Zhang, R. D. McDonald, A. Shekhter, Z. X. Bi, Y. Li, Q. X. Jia, S. T. Picraux. 2012-12-28. Magneto-resistance up to 60 Tesla in Topological Insulator Bi2Te3 Thin Films. https://doi.org/10.1063/1.4766739

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