Structure and magnetism of self-organized Co islands

被引：0
|
作者：
J. Bansmann
L. Lu
V. Senz
A. Bettac
M. Getzlaff
K.H. Meiwes-Broer
机构：
[1] Universität Rostock,
[2] Fachbereich Physik,undefined
[3] Universitätsplatz 3,undefined
[4] D-18051 Rostock,undefined
[5] Germany,undefined
[6] Institut für Angewandte Physik,undefined
[7] Universität Hamburg,undefined
[8] Jungiusstrasse 11,undefined
[9] D-20355 Hamburg,undefined
[10] Germany,undefined
来源：
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics | 1999年 / 9卷
关键词：
PACS: 61.46.+w Clusters, nanoparticles, and nanocrystalline materials – 75.25.+z Spin arrangements in magnetically ordered materials – 75.30.Pd Surface magnetism;
D O I：
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中图分类号：
学科分类号：
摘要：
This investigation turns its attention to magnetic effects of cobalt islands on a non-magnetic substrate. The preparation technique of MBE enables the creation of flat and well-ordered surfaces of hcp-Co(0001) if the evaporation onto a W(110) crystal is carried out at ambient temperatures. Subsequent heating to about 1000 K causes a phase transition from thin films to islands. The investigations are carried out in VUV photoemission with polarized synchrotron radiation, LEED and Scanning Tunneling Microscopy (STM). We employ the technique of magnetic linear dichroism in the angular distribution of photoemission (MLDAD) from valence bands. The MLDAD effect shows significant differences between a flat cobalt layer and cobalt islands. Variations due to the excitation energies are discussed with respect to a fully-relativistic bulk-band-structure calculation.
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页码：461 / 466
页数：5
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