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Adsorption and Migration of Sr on W

 

作者: B. E. Barnaby,   T. E. Madey,   A. A. Petrauskas,   E. A. Coomes,  

 

期刊: Journal of Applied Physics  （AIP Available online 1964）
卷期: Volume 35, issue 6  

页码: 1759-1763

 

ISSN:0021-8979

 

年代: 1964

 

DOI:10.1063/1.1713736

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A study of the migration of Sr on W by a field electron emission technique revealed two modes. In the first mode, for &thgr;≥1, migration proceeds with a sharp boundary while in the second mode, &thgr;<1, no boundary is observed. The activation energy for the first mode was found to be 0.79±0.06 eV/atom, and the activation energy for the second mode was found to be 1.44±0.08 eV/atom.

 

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