Concurrence of large anomalous Hall and topological Hall effects in ferromagnet <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msub> <mml:mi>Mn</mml:mi> <mml:mn>5</mml:mn> </mml:msub> <mml:msub> <mml:mi>Ge</mml:mi> <mml:mn>

Novel Hall phenomena are observed in centrosymmetric Mn5Ge3 ferromagnet. Contrary to the typical behavior observed in most ferromagnets, the large anomalous Hall effect is strongly suppressed at low temperatures, giving way to a dominant ordinary Hall effect that is well described by a two-band model. This unique temperature dependence suggests a competition between intrinsic and skew-scattering mechanisms. Furthermore, this work identifies two distinct origins of the topological Hall effect: one arising from non-collinear spin textures and the other from skyrmion bubbles. These findings offer new insights into both the anomalous and topological Hall effects.

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Publication Details

Journal
Physical Review Materials
Published
2025-12-05
DOI
https://doi.org/10.1103/dcl4-znfd
Primary Topic
Topological Materials and Phenomena
Type
article
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article

Concurrence of large anomalous Hall and topological Hall effects in ferromagnet <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msub> <mml:mi>Mn</mml:mi> <mml:mn>5</mml:mn> </mml:msub> <mml:msub> <mml:mi>Ge</mml:mi> <mml:mn>

Sheng Xu, J. H. Guo, Zhihai Cheng, Tian‐Long Xia et al.
Physical Review Materials
Topological Materials and Phenomena
article

Concurrence of large anomalous Hall and topological Hall effects in ferromagnet <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msub> <mml:mi>Mn</mml:mi> <mml:mn>5</mml:mn> </mml:msub> <mml:msub> <mml:mi>Ge</mml:mi> <mml:mn>

Sheng Xu, J. H. Guo, Zhihai Cheng, Tian‐Long Xia, Yu Zhang, Huan Wang, Xiaoyan Wang, Jun-Fa Lin, Xiangyu Zeng
article en

Abstract

Novel Hall phenomena are observed in centrosymmetric Mn5Ge3 ferromagnet. Contrary to the typical behavior observed in most ferromagnets, the large anomalous Hall effect is strongly suppressed at low temperatures, giving way to a dominant ordinary Hall effect that is well described by a two-band model. This unique temperature dependence suggests a competition between intrinsic and skew-scattering mechanisms. Furthermore, this work identifies two distinct origins of the topological Hall effect: one arising from non-collinear spin textures and the other from skyrmion bubbles. These findings offer new insights into both the anomalous and topological Hall effects.

Physical Review MaterialsVol. 9(12)
Chinese Academy of Sciences (CN), Zhejiang University of Technology (CN), Renmin University of China (CN)
Openalex Percentile: Top 69%
Topological Materials and Phenomena
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Concurrence of large anomalous Hall and topological Hall effects in ferromagnet <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msub> <mml:mi>Mn</mml:mi> <mml:mn>5</mml:mn> </mml:msub> <mml:msub> <mml:mi>Ge</mml:mi> <mml:mn> — Sheng Xu, J. H. Guo, et al. · Physical Review Materials (2025) | TGRS Research Map | TGRS