Large anomalous Hall effect in single crystals of the kagome Weyl ferromagnet Fe3Sn

Bishnu P. Belbase; Linda Ye; Bishnu Karki; Jorge I. Facio; Jhih Shih You; Joseph G. Checkelsky; Jeroen Van Den Brink; Madhav Prasad Ghimire

doi:10.1103/PhysRevB.108.075164

Large anomalous Hall effect in single crystals of the kagome Weyl ferromagnet Fe3Sn

Bishnu P. Belbase, Linda Ye, Bishnu Karki, Jorge I. Facio, Jhih Shih You, Joseph G. Checkelsky, Jeroen Van Den Brink, Madhav Prasad Ghimire

物理學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

6 引文斯高帕斯（Scopus）

摘要

The material class of kagome metals has rapidly grown and has been established as a field to explore the interplay between electronic topology and magnetism. In this work, we report a combined theoretical and experimental study of the anomalous Hall effect of the ferromagnetic kagome metal Fe3Sn. The compound orders magnetically at 725 K and presents an easy-plane anisotropy. Hall measurements in single crystals below room temperature yield an anomalous Hall conductivity σxy∼500(ωcm)-1, which is found to depend weakly on temperature. This value is in good agreement with the band-intrinsic contribution obtained by density-functional calculations. Our calculations also yield the correct magnetic anisotropy energy and predict the existence of Weyl nodes near the Fermi energy.

原文	英語
文章編號	075164
期刊	Physical Review B
卷	108
發行號	7
DOIs	https://doi.org/10.1103/PhysRevB.108.075164
出版狀態	已發佈 - 2023 8月 15

ASJC Scopus subject areas

電子、光磁材料
凝聚態物理學

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10.1103/PhysRevB.108.075164

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abstract = "The material class of kagome metals has rapidly grown and has been established as a field to explore the interplay between electronic topology and magnetism. In this work, we report a combined theoretical and experimental study of the anomalous Hall effect of the ferromagnetic kagome metal Fe3Sn. The compound orders magnetically at 725 K and presents an easy-plane anisotropy. Hall measurements in single crystals below room temperature yield an anomalous Hall conductivity σxy∼500(ωcm)-1, which is found to depend weakly on temperature. This value is in good agreement with the band-intrinsic contribution obtained by density-functional calculations. Our calculations also yield the correct magnetic anisotropy energy and predict the existence of Weyl nodes near the Fermi energy.",

author = "Belbase, {Bishnu P.} and Linda Ye and Bishnu Karki and Facio, {Jorge I.} and You, {Jhih Shih} and Checkelsky, {Joseph G.} and {Van Den Brink}, Jeroen and Ghimire, {Madhav Prasad}",

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AU - Belbase, Bishnu P.

AU - Ye, Linda

AU - Karki, Bishnu

AU - Facio, Jorge I.

AU - You, Jhih Shih

AU - Checkelsky, Joseph G.

AU - Van Den Brink, Jeroen

AU - Ghimire, Madhav Prasad

PY - 2023/8/15

Y1 - 2023/8/15

N2 - The material class of kagome metals has rapidly grown and has been established as a field to explore the interplay between electronic topology and magnetism. In this work, we report a combined theoretical and experimental study of the anomalous Hall effect of the ferromagnetic kagome metal Fe3Sn. The compound orders magnetically at 725 K and presents an easy-plane anisotropy. Hall measurements in single crystals below room temperature yield an anomalous Hall conductivity σxy∼500(ωcm)-1, which is found to depend weakly on temperature. This value is in good agreement with the band-intrinsic contribution obtained by density-functional calculations. Our calculations also yield the correct magnetic anisotropy energy and predict the existence of Weyl nodes near the Fermi energy.

AB - The material class of kagome metals has rapidly grown and has been established as a field to explore the interplay between electronic topology and magnetism. In this work, we report a combined theoretical and experimental study of the anomalous Hall effect of the ferromagnetic kagome metal Fe3Sn. The compound orders magnetically at 725 K and presents an easy-plane anisotropy. Hall measurements in single crystals below room temperature yield an anomalous Hall conductivity σxy∼500(ωcm)-1, which is found to depend weakly on temperature. This value is in good agreement with the band-intrinsic contribution obtained by density-functional calculations. Our calculations also yield the correct magnetic anisotropy energy and predict the existence of Weyl nodes near the Fermi energy.

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Large anomalous Hall effect in single crystals of the kagome Weyl ferromagnet Fe3Sn

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