In-plane anomalous Hall effect in PT-symmetric antiferromagnetic materials

Abstract

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 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 spin-canting effect in $\mathcal{P}\mathcal{T}$ symmetric antiferromagnetic (AFM) systems, featuring a linear dependence of magnetic field and 2$\pi$ angle periodicity with a comparable magnitude as conventional AHE. We demonstrate the key findings in the known AFM Dirac semimetal CuMnAs and a new kind of AFM heterodimensional VS${}_2$-VS superlattice with a nodal-line Fermi surface and also briefly discuss the experimental detection. Our work provides an efficient pathway to search and/or design realistic materials for novel IPAHE that could greatly facilitate their application in AFM spintronic devices.

arXiv comment6 pages, 4 figures, 1 table

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• Magnon Thermal Hall Effect Induced By Symmetric Exchange Interaction
• Universal classes of disorder scatterings in in-plane anomalous Hall effect
• Pairing-induced Momentum-space Magnetism and Its Implication In Optical Anomalous Hall Effect In Chiral Superconductors
• Magneto-cubic and magneto-linear dependence observed in an in-plane anomalous Hall magnet
• Classical transport theory for the planar Hall effect with threefold symmetry