Quantum electrical transport properties of topological insulator Bi2Te3 nanowires

Abstract

We investigate the quantum transport properties of surface electrons on a topological insulator Bi2Te3 nanowire in a magnetotransport study. Although the nanowires are synthesized by using a relatively coarse method of electrochemical deposition, clear Aharonov-Bohm oscillations of phases 0 and pi are observed, owing to the highly coherent surface electron channel. The oscillation amplitude exhibits exponential temperature dependence, suggesting that the phase coherence length L_phi is inversely proportional to the temperature, as in quasi-ballistic systems. In addition, a weak antilocalization analysis on the surface channel by using a one-dimensional localization theory, enabled by successful extraction of the surface contribution from the magnetoconductance data, is provided in support of the temperature dependence of L_phi.

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Cited by in corpus (9)

• Quantum electronic transport of topological surface states in beta-Ag2Se nanowire
• Adjustable quantum interference oscillations in Sb-doped Bi2Se3 topological insulator nanoribbons
• Robust and fragile Majorana bound states in proximitized topological insulator nanoribbons
• Quantum Interference Effects in Topological Nanowires In a Longitudinal Magnetic Field
• Superconducting Quantum Interference Devices Made of Sb-doped Bi2Se3 Topological Insulator Nanoribbons
• Multiple Andreev reflections in topological insulator nanoribbons
• Optimal Conditions for Observing Fractional Josephson Effect in Topological Josephson Junctions
• Vapor phase growth and characterization of van der Waals BiSbTeSe platelets on semiconducting MoS2
• Gate-Modulated Quantum Interference Oscillations in Sb-Doped Bi2Se3 Topological Insulator Nanoribbon