Experimental observation of the gate-controlled reversal of the anomalous Hall effect in the intrinsic magnetic topological insulator MnBi2Te4 device

Shuai Zhang; Rui Wang; Xuepeng Wang; Boyuan Wei; Huaiqiang Wang; Gang Shi; Feng Wang; Bin Jia; Yiping Ouyang; Bo Chen; Qianqian Liu; Faji Xie; Fucong Fei; Minhao Zhang; Xuefeng Wang; Di Wu; Xiangang Wan; Fengqi Song; Haijun Zhang; Baigeng Wang

doi:10.1021/acs.nanolett.9b04555

paper

Experimental observation of the gate-controlled reversal of the anomalous Hall effect in the intrinsic magnetic topological insulator MnBi2Te4 device

arXiv:1905.04839 · doi:10.1021/acs.nanolett.9b04555

Abstract

Here we report the reserved anomalous Hall effect (AHE) in the 5-septuple-layer van der Waals device of the intrinsic magnetic topological insulator MnBi2Te4. By employing the top/bottom gate, a negative AHE loop gradually decreases to zero and changes to a reversed sign. The reversed AHE exhibits distinct coercive fields and temperature dependence from the previous AHE. It reaches the maximum inside the gap of the Dirac cone. The newly-seen reversed AHE is attributed to the competition of the intrinsic Berry curvature and the Dirac-gap enhanced extrinsic skew scattering. Its gate-controlled switching contributes a scheme for the topological spin field-effect transistors.

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Cited by in corpus (32)

Colloquium: Quantum anomalous Hall effect
Layer Hall effect in a 2D topological Axion antiferromagnet
Electrical switching of magnetic order in an orbital Chern insulator
Intrinsic magnetic topological insulator phases in the Sb doped MnBi2Te4 bulks and thin flakes
A van der Waals antiferromagnetic topological insulator with weak interlayer magnetic coupling
Realization of an intrinsic, ferromagnetic topological state in MnBi8Te13
Even-Odd Layer-Dependent Anomalous Hall Effect in Topological Magnet MnBi2Te4 Thin Films
Magnetic-field-induced robust zero Hall plateau state in MnBi $_{2}$ Te $_{4}$ Chern insulator
Nanodevices engineering and spin transport properties of MnBi2Te4 monolayer
Giant linearly-polarized photogalvanic effect and second harmonic generation in two-dimensional axion insulators
Magnetized Topological Insulator Multilayers
Pressure-induced Topological and Structural Phase Transitions in an Antiferromagnetic Topological Insulator
Dynamical axion state with hidden pseudospin Chern numbers in MnBi $_{2}$ Te $_{4}$ -based heterostructures
Dissipationless Layertronics in Axion Insulator $MnB i_{2} T e_{4}$
Large Exchange Bias Effect and Coverage-Dependent Interfacial Coupling in CrI3/MnBi2Te4 van der Waals Heterostructures
Experimental evidence on the dissipationless transport of chiral edge state of the high-field Chern insulator in MnBi2Te4 nanodevices
Coexistence of Ferromagnetism and Topology by Charge Carrier Engineering in intrinsic magnetic topological insulator MnBi4Te7
Towards the Quantized Anomalous Hall effect in AlO $_{x}$ -capped MnBi $_{2}$ Te $_{4}$
Electrically Controlled Anomalous Hall Effect and Orbital Magnetization in Topological Magnet MnBi2Te4
Metamagnetism of few layer topological antiferromagnets
Gate-Tunable Quantum Anomalous Hall Effects in MnBi $_{2}$ Te $_{4}$ Thin Films
Fabrication-induced even-odd discrepancy of magnetotransport in few-layer MnBi $_{2}$ Te $_{4}$
Charge Carrier Mediation and Ferromagnetism induced in MnBi6Te10 Magnetic Topological Insulators by antimony doping
Three-Dirac-fermion approach to unexpected universal gapless surface states of van der Waals magnetic topological insulators
Kerr, Faraday, and Magnetoelectric Effects in MnBi $_{2}$ Te $_{4}$ Thin Films
Proximity-induced superconducting gap in the intrinsic magnetic topological insulator MnBi2Te4
Quantum Anomalous Hall Effect in Perfectly Compensated Collinear Antiferromagnetic Thin Films
Magnetic order-dependent giant tunneling magnetoresistance and electroresistance in van der Waals antiferromagnetic-multiferroic tunnel junctions
Intrinsic ferromagnetic axion states and a single pair of Weyl fermions in the stable-state Mn\emph{X} $_{2}$ \emph{B} $_{2}$ \emph{T} $_{6}$ -family materials
Intrinsic ferromagnetic and antiferromagnetic axion insulators in van der Waals materials Mn\emph{X} $_{2}$ \emph{B} $_{2}$ \emph{T} $_{6}$ family
Direct observation of chiral edge current at zero magnetic field in odd-layer MnBi $_{2}$ Te $_{4}$
Optical study of the charge dynamics evolution in the topological insulators MnBi $_{2}$ Te $_{4}$ and Mn(Bi $_{0.74}$ Sb $_{0.26}$ ) $_{2}$ Te $_{4}$ under high pressure