Magnetically and electrically tunable nonlinear Hall effect in Tt-symmetric antiferromagnets
Abstract
Tt-symmetric antiferromagnets can exhibit multiferroicity with coexisting ferroelectricity and magnetic order, and thus host multiple order-parameter configurations. However, how to electrically read out these configurations is an issue meriting further investigation. Here, by combining tight-binding and first-principles calculations, we propose electrically and magnetically tunable nonlinear Hall transport in ferroelectric Tt-symmetric antiferromagnets. Model calculations show that ferroelectric switching can reverse the sign of the Berry curvature dipole (BCD), whereas the Neel vector rotation modulates its magnitude, allowing both ferroelectric and magnetic order to be reflected in the nonlinear Hall signal. First-principles calculations of the VOCl2 monolayer confirm these behaviors and predict a sizable BCD that gives rise to a potentially detectable Hall voltage. Our findings open up opportunities to integrate electrical and magnetic modulations of the nonlinear Hall effect within a single material, with potential applications in multi-state information encoding and readout in antiferromagnetic spintronics.
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BibTeX
@misc{ning2026magnetically,
title = {{Magnetically and electrically tunable nonlinear Hall effect in Tt-symmetric antiferromagnets}},
author = {Yueyue Ning and Yongliang Song and Yanrui Ding and Zhichao Zhou and Xiao Li},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.02567},
eprint = {2611.02567},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.02567},
}
RIS
TY - UNPB
TI - Magnetically and electrically tunable nonlinear Hall effect in Tt-symmetric antiferromagnets
AU - Yueyue Ning
AU - Yongliang Song
AU - Yanrui Ding
AU - Zhichao Zhou
AU - Xiao Li
PY - 2026
DA - 2026/11/02
PB - arXiv
DO - 10.48550/arxiv.2611.02567
UR - https://arxiv.org/abs/2611.02567
AB - Tt-symmetric antiferromagnets can exhibit multiferroicity with coexisting ferroelectricity and magnetic order, and thus host multiple order-parameter configurations. However, how to electrically read out these configurations is an issue meriting further investigation. Here, by combining tight-binding and first-principles calculations, we propose electrically and magnetically tunable nonlinear Hall transport in ferroelectric Tt-symmetric antiferromagnets. Model calculations show that ferroelectric switching can reverse the sign of the Berry curvature dipole (BCD), whereas the Neel vector rotation modulates its magnitude, allowing both ferroelectric and magnetic order to be reflected in the nonlinear Hall signal. First-principles calculations of the VOCl2 monolayer confirm these behaviors and predict a sizable BCD that gives rise to a potentially detectable Hall voltage. Our findings open up opportunities to integrate electrical and magnetic modulations of the nonlinear Hall effect within a single material, with potential applications in multi-state information encoding and readout in antiferromagnetic spintronics.
ER -