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

Research output: Contribution to journalArticlepeer-review

1 Citation (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 languageEnglish
Article number075164
JournalPhysical Review B
Volume108
Issue number7
DOIs
Publication statusPublished - 2023 Aug 15

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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