摘要
Using a field ion microscope, we have probed the diffusion behavior of Ni adatoms on Ni surfaces. Activation barrier heights have been derived to be 0.22±0.02 eV and 0.59±0.03 eV for self-diffusion on Ni(111) and Ni(001), and 0.84±0.19 eV for the `ascending' motion of Ni(111) step edge atoms. From the visit site maps, we have experimentally determined the mechanism of self-diffusion on Ni(001) surfaces to be atomic exchange.
原文 | 英語 |
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頁(從 - 到) | 571-574 |
頁數 | 4 |
期刊 | Surface Science |
卷 | 454 |
發行號 | 1 |
DOIs | |
出版狀態 | 已發佈 - 2000 5月 20 |
事件 | ECOSS-18: 18th European Conference on Surface Science - Vienna, Austria 持續時間: 1999 9月 21 → 1999 9月 24 |
ASJC Scopus subject areas
- 凝聚態物理學
- 表面和介面
- 表面、塗料和薄膜
- 材料化學