First-principles calculation of the magnetic anisotropy energies of Ag/Fe(001) and Au/Fe(001) multilayers

被引:31
作者
Kyuno, K [1 ]
Ha, JG [1 ]
Yamamoto, R [1 ]
Asano, S [1 ]
机构
[1] UNIV TOKYO, COLL ARTS & SCI, MEGURO KU, TOKYO 153, JAPAN
关键词
metallic multilayers; perpendicular magnetic anisotropy; electronic structure; first-principles calculation; Ag/Fe multilayer; Au/Fe multilayer;
D O I
10.1143/JPSJ.65.1334
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The anisotropy energies of (111) and (001) oriented Ag/Fe and Au/Fe multilayers are obtained by a first-principle calculation to investigate the orientational dependence of the magnetic anisotropy. All systems show perpendicular anisotropy in good agreement with experiments. In the case of Ag/Fe multilayers, the anisotorpy energy of the (001) oriented multilayer is larger than that of the (111) multilayer. In contrast to Ag/Fe, Au/Fe(111) multilayer exhibits a stronger perpendicular anisotropy than the (001) oriented system. In all systems, a large minority-spin LDOS of \m\ = 2 character of Fe near the Fermi energy could be the origin of perpendicular magnetic anisotropy.
引用
收藏
页码:1334 / 1339
页数:6
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