期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 469, 期 -, 页码 296-301出版社
ELSEVIER
DOI: 10.1016/j.jmmm.2018.08.071
关键词
Hard-magnet compounds; First-principles calculation; ThMn12 structure; Sm(Fe, Co)(12); Spin-wave
资金
- Elements Strategy Initiative Project under MEXT
- MEXT
- RIKEN Advanced Institute for Computational Science through the HPCI System Research project [hp170100]
We present spin-wave dispersion in Sm(Fe1-xCox)(12) calculated from first-principles. Anisotropy in the lowest branch of the spin-wave dispersion around the Gamma point is discussed. It is shown that spin-waves propagate more easily along a*-axis than along c*-axis, especially in SmFe12. We also compare values of the spin-wave stiffness with those obtained from an experiment. The calculated values are in good agreement with the experimental values.
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