Burrowing self-organized cobalt clusters into a gold substrate
Burrowing self-organized cobalt clusters into a gold substrate
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将自组织钴簇钻入金基底中
DOI：
10.1209/epl/i1999-00167-2
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发表时间：
1999
期刊：
影响因子：
1.8
通讯作者：
J. Bucher
中科院分区：
文献类型：
--
作者：
S. Padovani;F. Scheurer;J. Bucher
通过变温STM、俄歇光谱和原位磁光克尔（MOKE）测量，研究了钴团簇在Au（111）衬底上的形成机理。在热活化时，钴簇通过同时排出金原子而沉入衬底中，金原子又通过嵌入剩余的钴簇而做出贡献。尽管在此操作期间发生了重要的质量传输，但MOKE表明团簇在全球范围内保持不受干扰，直到最终在600 K以上发生不可逆转的团簇碎裂和溶解。
The mechanism of cobalt-cluster incorporation into a Au(111) 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.