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

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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Cited by in corpus (6)

• Shubnikov-de Haas oscillations, weak antilocalization effect and large linear magnetoresistance in the putative topological superconductor LuPdBi
• Magnetoresistance in two-component systems
• Unusual non saturating Giant Magneto-resistance in single crystalline Bi2Te3 topological insulator
• Tunable interaction-induced localization of surface electrons in antidot nanostructured Bi2Te3 thin films
• Weak antilocalization effect due to topological surface states in Bi${}_2$Se${}_{2.1}$Te${}_{0.9}$
• Magnetoresistive property study of direct and indirect band gap thermoelectric Bi-Sb alloys