Long-distance spin-transport across the Morin phase transition up to room temperature in ultra-low damping single crystals of the antiferromagnet α-Fe2O3

@article{Lebrun2020LongdistanceSA,
  title={Long-distance spin-transport across the Morin phase transition up to room temperature in ultra-low damping single crystals of the antiferromagnet $\alpha$-Fe2O3},
  author={R. Lebrun and A. Ross and O. Gomonay and V. Baltz and U. Ebels and A. Barra and A. Qaiumzadeh and A. Brataas and J. Sinova and M. Kl{\"a}ui},
  journal={Nature Communications},
  year={2020},
  volume={11}
}
Antiferromagnetic materials can host spin-waves with polarizations ranging from circular to linear depending on their magnetic anisotropies. Until now, only easy-axis anisotropy antiferromagnets with circularly polarized spin-waves were reported to carry spin-information over long distances of micrometers. In this article, we report long-distance spin-transport in the easy-plane canted antiferromagnetic phase of hematite and at room temperature, where the linearly polarized magnons are not… Expand
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A novel proof-of-principle ionic approach to control the spin reorientation (Morin) transition reversibly in the common antiferromagnetic insulator α-Fe2O3 (haematite) – now an emerging spintronic material that hosts topological antiferromeagnetic spin-textures and long magnon-diffusion lengths. Expand
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