Growth and the diffusion of platinum atoms and dimers on Pt(111)

Kentaro Kyuno, Armin Gölzhäuser, Gert Ehrlich

研究成果: Article査読

88 被引用数 (Scopus)

抄録

The diffusion of platinum adatoms and dimers on Pt(111) has been measured at different temperatures by direct observation in a low-temperature field ion microscope. The activation energy for single atom motion is found to be 0.260±0.003 eV, while for dimers it is 0.37±0.02 eV. Comparison with previous results obtained in STM studies of the density of islands after deposition from the vapor as well as with theoretical estimates are now possible. The former are in excellent agreement, the latter less so, but empirical extrapolation from the neighboring iridium proves useful. Contributions from dimer diffusion to growth at low temperatures can also be assessed, and are found to be minor.

本文言語English
ページ(範囲)191-196
ページ数6
ジャーナルSurface Science
397
1-3
DOI
出版ステータスPublished - 1998 2月
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 表面および界面
  • 表面、皮膜および薄膜
  • 材料化学

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