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arXiv · 2302.08276

Large intrinsic anomalous Hall effect in both Nb$_{2}$FeB$_{2}$ and Ta$_{2}$FeB$_{2}$ with collinear antiferromagnetism

Xiao-Yao Hou·Huan-Cheng Yang·Zheng-Xin Liu·Peng-Jie Guo·Zhong-Yi Lu
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Abstract

It is rarely reported that collinear antiferromagnetic (AFM) metals can have anomalous Hall effect (AHE). In this letter, based on symmetry analysis and the first-principles electronic structure calculations, we predict that two existing collinear antiferromagnets Nb$_{2}$FeB$_{2}$ and Ta$_{2}$FeB$_{2}$, whose N\'eel temperatures are above room temperature, have very large AHE with anomalous Hall conductance (AHC) -100 $\Omega^{-1}$ cm$^{-1}$ and $-54\Omega^{-1}$ cm$^{-1}$, respectively. We further complete the symmetry resquirements for realizing the AHE in collinear antiferromagnetism.

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Xiao-Yao Hou, Huan-Cheng Yang, Zheng-Xin Liu, Peng-Jie Guo, Zhong-Yi Lu. 2023-02-16. Large intrinsic anomalous Hall effect in both Nb$_{2}$FeB$_{2}$ and Ta$_{2}$FeB$_{2}$ with collinear antiferromagnetism. https://doi.org/10.1103/physrevb.107.l161109

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