Burrowing self-organized cobalt clusters into a gold substrate

被引:66
作者
Padovani, S [1 ]
Scheurer, F [1 ]
Bucher, JP [1 ]
机构
[1] Univ Louis Pasteur Strasbourg 1, UMR 7504, CNRS, Inst Phys & Chim Mat Strasbourg, F-67037 Strasbourg, France
来源
EUROPHYSICS LETTERS | 1999年 / 45卷 / 03期
关键词
D O I
10.1209/epl/i1999-00167-2
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The mechanism of cobalt-cluster incorporation into a Au(lll) substrate is followed by variable temperature STM, Auger spectroscopy, and in situ magneto-optic Kerr (MOKE) measurements. Upon thermal activation, cobalt clusters sink into the substrate by simultaneously expelling gold atoms which, in turn, contribute by embedding the remaining cobalt clusters. Although important mass transport occurs during this operation, MOKE indicates that the clusters remain globally undisturbed, until finally, irreversible cluster fragmentation and dissolution occur above 600 K.
引用
收藏
页码:327 / 333
页数:7
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