Nature Communications (Aug 2022)

Above-room-temperature strong intrinsic ferromagnetism in 2D van der Waals Fe3GaTe2 with large perpendicular magnetic anisotropy

  • Gaojie Zhang,
  • Fei Guo,
  • Hao Wu,
  • Xiaokun Wen,
  • Li Yang,
  • Wen Jin,
  • Wenfeng Zhang,
  • Haixin Chang

DOI
https://doi.org/10.1038/s41467-022-32605-5
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 8

Abstract

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In isotropic two dimensional systems, long range ferromagnetic order is supressed by thermal fluctuations, and it is due to magnetic anisotropy that van der Waals magnetic materials can have ferromagnetic ordering at finite temperatures. Usually this magnetic anisotropy is relatively small, but in this manuscript Zhang et al make a two dimensional van der Waals material with exceptionally large perpendicular magnetic anisotropy and ferromagnetic ordering that exits up to 350 K.