Influence of ligand states on the relationship between orbital moment and magnetocrystalline anisotropy

被引：124

作者：

Andersson, C.

Sanyal, B.

Eriksson, O.

Nordstrom, L.

Karis, O.

Arvanitis, D.

机构：

[1] Uppsala Univ, Dept Phys, S-75121 Uppsala, Sweden

[2] Chiba Univ, Fac Sci, Dept Chem, Chiba 2638522, Japan

[3] Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany

[4] Lund Univ, Max Lab, SE-22100 Lund, Sweden

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.99.177207

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The spin and orbital moments of Au/Co/Au trilayers grown on a W(110) single crystal substrate have been investigated by means of x-ray magnetic circular dichroism. Our findings suggest that the orbital moment of Co does not obtain a maximum value along the easy axis, in contrast with previous experience. This is attributed to the large spin-orbit interaction within the Au caps. Both second order perturbation theory and first principles calculations show how the magnetocrystalline anisotropy (MCA) is dramatically influenced by this effect, and how this leads to the fact that the orbital moment anisotropy is not proportional to the MCA.

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页数：4

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