Magnetic anisotropy energy of antiferromagnetic L10-type equiatomic Mn alloys

R. Y. Umetsu, A. Sakuma, K. Fukamichi

研究成果: Article査読

51 被引用数 (Scopus)

抄録

The theoretical calculations of magnetic anisotropy energy (MAE) for antiferromagnetic L10-type MnTM [transition metal (TM)=Ni, Pd, Pt, Rh, and Ir] alloys were carried out on the basis of the local spin-density approximation using linear muffin-tin orbital method with atomic sphere approximation including the spin-orbit interaction. It has been demonstrated that the magnitude of the MAE for L10-type MnIr alloy is highest, -20.77 × 106 J/m3, and the negative sign of the MAE is consistent with the reported spin structure. On the other hand, the sign of the MAE for L10-type MnPt alloy is positive in accordance with the spin structure. The MAE of the MnPt alloy is sensitive to the electron number, which would be correlated with the fact that only the MnPt alloy system exhibits a complicated magnetic phase diagram.

本文言語English
論文番号052504
ジャーナルApplied Physics Letters
89
5
DOI
出版ステータスPublished - 2006 9月 15

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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