Weak Antilocalization and Conductance Fluctuation in a Sub-micrometer-sized Wire of Epitaxial Bi2Se3

Abstract

In this study, we address the phase coherent transport in a sub-micrometer-sized Hall bar made of epitaxial Bi2Se3 thin film by probing the weak antilocalization (WAL) and the magnetoresistance fluctuation below 22 K. The WAL effect is well described by the Hikami-Larkin-Nagaoka model, where the temperature dependence of the coherence length indicates that electron conduction occurs quasi-one-dimensionally in the narrow Hall bar. The temperature-dependent magnetoresistance fluctuation is analyzed in terms of the universal conductance fluctuation, which gives a coherence length consistent with that derived from the WAL effect.

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Cited by in corpus (29)

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• Coherent Topological Transport on the Surface of Bi2Se3
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• Gate-tuned Differentiation of Surface-conducting States in Bi1.5Sb0.5Te1.7Se1.3 Topological-insulator Thin Crystals
• Two-dimensional universal conductance fluctuations and the electron-phonon interaction of topological surface states in Bi2Te2Se nanoribbons
• Quasi-ballistic transport of Dirac fermions in a Bi2Se3 nanowire
• 2D layered transport properties from topological insulator Bi${}_2$Se${}_3$ single crystals and micro flakes
• Demonstration of surface transport in a hybrid Bi2Se3/Bi2Te3 heterostructure
• Linear magneto-resistance versus weak antilocalization effects in Bi${}_2$Te${}_3$ films
• Thermoelectric performance of classical topological insulator nanowires
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• Resolving the Dirac Cone on the Surface of Bi2Te3 Topological Insulator Nanowires by Field-Effect Measurements
• Low temperature saturation of phase coherence length in topological insulators
• Topological Insulator Thin Films Starting from the Amorphous Phase - Bi${}_2$Se${}_3$ as Example
• Experimental Proof of Universal Conductance Fluctuation in Quasi-1D Epitaxial Bi${}_2$Se${}_3$ Wires
• Comprehensive Analysis for the High Field Magneto-conductivity of Bi2Te3 Single Crystal
• Indications of the topological transport by the universal conductance fluctuations in the Bi2Te2Se microflakes
• Determination of the phase coherence length of PdCoO${}_2$ nanostructures
• Quantum Interference Effects in Topological Nanowires In a Longitudinal Magnetic Field
• Spin-orbit coupling and weak antilocalization in thermoelectric material $\beta$-K${}_2$Bi${}_8$Se${}_{13}$
• Transport in topological insulators with bulk-surface coupling: Interference corrections and conductance fluctuations
• Surface states induced weak anti-localization effect in Bi0.85Sb0.15 topological single crystal
• From classical to quantum regime of topological surface states via defect engineering
• Universal Conductance Fluctuations of Topological Insulators
• Beta-Ag2Te: A topological insulator with strong anisotropy
• Phase-coherent loops in selectively-grown topological insulator nanoribbons