THE MAGNETIC SINGLE-ION ANISOTROPY IN HEMATITE

  • A calculation of the magnetic single-ion anisotropy in hematite has been made. The results show that an equivalent single-ion anisotropy field Hsi(=103.8x102 Oe) exists along the c-axis at T=0K. The Morin transition in hematite could be explained by our results in conjunction with the calculated Hmd by Artman et al.

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