Size-dependent magnetism of deposited small iron clusters studied by x-ray magnetic circular dichroism -: art. no. 057201

被引：144

作者：

Lau, JT ^{[1
]}

Föhlisch, A ^{[1
]}

Nietubyc, R ^{[1
]}

Reif, M ^{[1
]}

Wurth, W ^{[1
]}

机构：

[1] Univ Hamburg, Inst Expt Phys, D-22761 Hamburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.89.057201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The size-dependent magnetic properties of small iron clusters deposited on ultrathin nickel films have been studied with circularly polarized synchrotron radiation. With the use of sum rules, orbital and spin magnetic moments have been extracted from x-ray magnetic circular dichroism spectra. The ratio of orbital to spin magnetic moments varies considerably with cluster size, reflecting the dependence of magnetic properties on cluster size and geometry. These variations can be explained in terms of enhanced orbital moments in small clusters.

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页码：1 / 057201

页数：4

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