Method of creating a Pd-covered single-atom sharp W pyramidal tip: Mechanism and energetics of its formation

Tsu Yi Fu*, Lung Chieh Cheng, C. H. Nien, Tien T. Tsong

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

106 引文 斯高帕斯(Scopus)

摘要

Single-atom sharp pyramidal W tips, wrapped in a Pd overlayer, having atom-perfect wedges can be routinely and repeatedly created using a surface-science technique. This single-atom tip is thermally stable up to 1000 K because of the exceptionally large surface-energy anisotropy of the Pd covered W(111) surface. We conclude from atom-by-atom analysis that the W tip is covered with only one physical monolayer of Pd. We also investigate the mechanism and energetics of the atomic processes involved in its formation.

原文英語
文章編號113401
頁(從 - 到)1134011-1134014
頁數4
期刊Physical Review B - Condensed Matter and Materials Physics
64
發行號11
DOIs
出版狀態已發佈 - 2001

ASJC Scopus subject areas

  • 電子、光磁材料
  • 凝聚態物理學

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