Atom dynamics on Pt, Ir and Cu surfaces: An experimental study using various techniques

Tien T. Tsong, Chonglin Chen, Tsu Yi Fu, Yi Ren Tzeng

研究成果: 雜誌貢獻综述文章

2 引文 斯高帕斯(Scopus)

摘要

Some metallic adsorbed atoms on fcc metal surfaces can exchange with substrate atoms well below the room temperature. For homogeneous systems, the atomic exchange is a mechanism for self-diffusion. For heterogeneous systems, it is a mechanism for point alloy formation of only the top surface layer but it will also induce self-diffusion. We present experimental evidence found from FIM, HREELS and LEIS studies. These experiments and their relations to available theories and molecular dynamic simulations of this phenomenon are also mentioned. In addition, we present evidence for the ascending motion of step edge atoms to the upper terrace for the Ir (111) surface, and the result of a measurement of the potential barrier height of the ascending motion and the dissociation energy of step edge atoms to the lower terrace.

原文英語
頁(從 - 到)1259-1269
頁數11
期刊Surface Review and Letters
3
發行號2
DOIs
出版狀態已發佈 - 1996 四月

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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