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

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 Néel temperatures are above room temperature, have very large AHE with anomalous Hall conductance (AHC) -100 $Ω^{- 1}$ cm $^{- 1}$ and $- 54 Ω^{- 1}$ cm $^{- 1}$ , respectively. We further complete the symmetry resquirements for realizing the AHE in collinear antiferromagnetism.

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

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

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Large intrinsic anomalous Hall effect in both Nb22​FeB22​ and Ta22​FeB22​ with collinear antiferromagnetism

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Large intrinsic anomalous Hall effect in both Nb22​FeB22​ and Ta22​FeB22​ with collinear antiferromagnetism

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

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

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AI智能校验