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

Department of Physics

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

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.

Original language	English
Article number	075164
Journal	Physical Review B
Volume	108
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.108.075164
Publication status	Published - 2023 Aug 15

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.108.075164

Cite this

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title = "Large anomalous Hall effect in single crystals of the kagome Weyl ferromagnet Fe3Sn",

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

Abstract

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