In-Plane Anomalous Hall Effect in PT-Symmetric Antiferromagnetic Materials

Jin Cao, Wei Jiang, Xiao-Ping Li, Daifeng Tu, Jiadong Zhou, Jianhui Zhou, and Yugui Yao
Phys. Rev. Lett. 130, 166702 – Published 19 April 2023
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Abstract

The anomalous Hall effect (AHE), a protocol of various low-power dissipation quantum phenomena and a fundamental precursor of intriguing topological phases of matter, is usually observed in ferromagnetic materials with an orthogonal configuration between the electric field, magnetization, and the Hall current. Here, based on the symmetry analysis, we find an unconventional AHE induced by the in-plane magnetic field (IPAHE) via the spin-canting effect in PT-symmetric antiferromagnetic (AFM) systems, featuring a linear dependence of magnetic field and 2π angle periodicity with a comparable magnitude to conventional AHE. We demonstrate the key findings in the known AFM Dirac semimetal CuMnAs and a new kind of AFM heterodimensional VS2VS superlattice with a nodal-line Fermi surface and, also, briefly discuss the experimental detection. Our Letter provides an efficient pathway for searching and/or designing realistic materials for a novel IPAHE that could greatly facilitate their application in AFM spintronic devices. National Science Foundation

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  • Received 6 September 2022
  • Revised 5 February 2023
  • Accepted 21 March 2023

DOI:https://doi.org/10.1103/PhysRevLett.130.166702

© 2023 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Jin Cao1,2,*, Wei Jiang1,2,*, Xiao-Ping Li1,2, Daifeng Tu3,4, Jiadong Zhou1,2, Jianhui Zhou3,†, and Yugui Yao1,2,‡

  • 1Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, Beijing 100081, China
  • 2Beijing Key Lab of Nanophotonics & Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, Beijing, 100081, China
  • 3Anhui Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, HFIPS, Anhui, Chinese Academy of Sciences, Hefei 230031, P. R. China
  • 4Department of Physics, University of Science and Technology of China, Hefei 230026, P. R. China

  • *These authors contributed equally to this work.
  • jhzhou@hmfl.ac.cn
  • ygyao@bit.edu.cn

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Issue

Vol. 130, Iss. 16 — 21 April 2023

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