Structure, composition and magnetic properties of size-selected FeCo alloy clusters on surfaces

被引：0
|
作者：
M. Getzlaff
J. Bansmann
F. Bulut
R.K. Gebhardt
A. Kleibert
K.H. Meiwes-Broer
机构：
[1] Universität Düsseldorf,Institut für Angewandte Physik
[2] Universität Rostock,Institut für Physik
来源：
Applied Physics A | 2006年 / 82卷
关键词：
Total Magnetic Moment; Spin Moment; Orbital Moment; Free Cluster; Cluster Source;
D O I：
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中图分类号：
学科分类号：
摘要：
The magnetic properties of 3d-metal clusters significantly differ from bulk behavior. This phenomenon is caused by a narrowing of electronic states and the high ratio of surface to volume atoms giving rise to enhanced magnetic orbital moments. FeCo alloys as soft magnetic materials are known to exhibit very high magnetic moments. The spin and orbital moments of iron and cobalt in size-selected FeCo alloy clusters on non-magnetic as well as magnetized nickel substrates have been investigated by X-ray magnetic circular dichroism with elemental specification. Structural properties were determined by scanning probe measurements. The preformed clusters maintain their original three-dimensional shape with a tendency to a slightly oblate occurrence, which can be explained by particle–support interaction, and do not change to a more or less two-dimensional formation after deposition.
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页码：95 / 101
页数：6
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