Current induced anisotropic magnetoresistance in topological insulator films

Abstract

Topological insulators are insulating in the bulk but possess spin-momentum locked metallic surface states protected by time-reversal symmetry. The existence of these surface states has been confirmed by angle-resolved photoemission spectroscopy (ARPES) and scanning tunneling microscopy (STM). Detecting these surface states by transport measurement, which might at first appear to be the most direct avenue, was shown to be much more challenging than expected. Here, we report a detailed electronic transport study in high quality Bi2Se3 topological insulator thin films. Measurements under in-plane magnetic field, along and perpendicular to the bias current show opposite magnetoresistance. We argue that this contrasting behavior is related to the locking of the spin and current direction providing evidence for helical spin structure of the topological surface states.

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Cited by in corpus (33)

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• Giant anisotropic magnetoresistance and planar Hall effect in the Dirac semimetal Cd3As2
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• Kramers Pairs of Majorana Fermions and Parafermions in Fractional Topological Insulators
• Negative Magnetoresistance without Chiral Anomaly in Topological Insulators
• Magnetically Defined Qubits on 3D Topological Insulators
• Molecular Beam Epitaxial Growth of Bi2Te3 and Sb2Te3 Topological Insulators on GaAs (111) Substrates: A Potential Route to Fabricate Topological Insulator p-n Junction
• Crossover between Weak Antilocalization and Weak Localization of Bulk States in Ultrathin Bi2Se3 Films
• Berry phase theory of planar Hall effect in Topological Insulators
• Quantum Spin Hall Effect in Strip of Stripes Model
• Ferromagnetism and Spin-dependent Transport in n-type Mn-Bi2Te3 Thin Films
• Fractional Charge and Spin States in Topological Insulator Constrictions
• Unconventional Hall Effect induced by Berry Curvature
• Quantum Transport in Topological Semimetals under Magnetic Fields (II)
• Electron Transport in Dirac and Weyl Semimetals
• Intrinsic Magnetoresistance in Three-Dimensional Dirac Materials
• Quantum Interference Theory of Magnetoresistance in Dirac Materials
• Log-periodic quantum magneto-oscillations and discrete scale invariance in topological material HfTe5
• Transport Properties of Topological Insulators Films and Nanowires
• Topological Phase Transition-Induced Tri-Axial Vector Magnetoresistance in (Bi1-xInx)2Se3 Nanodevices
• Electronic transport properties of topological insulator films and low dimensional superconductors
• Helical Symmetry Breaking and Quantum Anomaly in Massive Dirac Fermions
• Hexagonal Warping Induced Nonlinear Planar Nernst Effect in Nonmagnetic Topological Insulators
• Quantum Diffusive Magneto-transport in Massive Dirac Materials with Chiral Symmetry Breaking
• Forbidden Backscattering and Resistance Dip in the Quantum Limit as a Signature for Topological Insulators
• Semiclassical Boltzmann magnetotransport theory in anisotropic systems with a nonvanishing Berry curvature
• Semiclassical magnetotransport including the effects of the Berry curvature and Lorentz force
• Nonlinear planar magnetotransport due to tilted Dirac cones in topological materials
• Shubnikov-de Haas oscillations and planar Hall effect in HfTe2
• Linear magnetoresistance of two-dimensional massless Dirac fermions in the quantum limit
• Theory for the negative longitudinal magnetoresistance in the quantum limit of Kramers Weyl semimetals
• Disorder-mediated linear and nonlinear magnetotransport in the charge-density-wave material $\mathrm{T}{\mathrm{a}}_2\mathrm{NiS}{\mathrm{e}}_7$