Large Anomalous Hall Conductivity Derived from an $f$-Electron Collinear Antiferromagnetic Structure

Abstract

Appropriate symmetry breaking generates an anomalous Hall (AH) effect, even in antiferromagnetic (AFM) materials. Itinerant magnets with $d$ electrons are typical examples that show a significant response. By contrast, the process by which a response emerges from $f$-electron AFM structures remains unclear. In this study, we show that an AFM material, Ce${}_2$CuGe${}_6$, yields a large AH conductivity (AHC) of $550$ ${\Omega }^{-1}$cm${}^{-1}$, which exceeds the values previously reported in $d$-electron AFM materials. Observed features, including the scaling relation against electrical conductivity, suggest that this AH transport is induced cooperatively by both intrinsic and extrinsic mechanisms derived from the AFM structure.

5 pages, 4 figures

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Cited by in corpus (6)

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• Diverse Magnetic Phase Diagram and Anomalous Hall Effect in Antiferromagetic LuMn${}_6$Sn${}_6$
• Reversing Neel Vector in PT-Antiferromagnets by Nonreciprocal Light Scattering
• Topological Hall Effect in PrSb${}_2$
• Spontaneous Anomalous Hall Effect at Room Temperature in Antiferromagnetic Material NbMnAs
• Accessing quasi-flat $\text{f}$-bands to harvest large Berry curvature in NdGaSi