Two-dimensional itinerant ferromagnetism in atomically thin Fe3GeTe2

@article{Fei2018TwodimensionalIF,
  title={Two-dimensional itinerant ferromagnetism in atomically thin Fe3GeTe2},
  author={Zaiyao Fei and Bevin Huang and Paul Malinowski and Weiqi Wang and Tiancheng Song and Joshua J. Sanchez and Wang Yao and Di Xiao and Xiaoyang Zhu and Andrew F. May and Weida Wu and David H. Cobden and Jiun Haw Chu and Xiaodong Xu},
  journal={Nature Materials},
  year={2018},
  volume={17},
  pages={778-782}
}
Discoveries of intrinsic two-dimensional (2D) ferromagnetism in van der Waals (vdW) crystals provide an interesting arena for studying fundamental 2D magnetism and devices that employ localized spins1–4. However, an exfoliable vdW material that exhibits intrinsic 2D itinerant magnetism remains elusive. Here we demonstrate that Fe3GeTe2 (FGT), an exfoliable vdW magnet, exhibits robust 2D ferromagnetism with strong perpendicular anisotropy when thinned down to a monolayer. Layer-number-dependent… 
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