標題: | Atomistic view of the recombinative desorption of H(2) from H/Si(100) |
作者: | Ferng, SS Lin, CT Yang, KM Lin, DS Chiang, TC 物理研究所 Institute of Physics |
公開日期: | 20-五月-2005 |
摘要: | Scanning tunneling microscopy is employed to investigate the recombinative desorption of H(2) from hydrogenated Si(100) surfaces consisting of dihydride (SiH(2)) and monohydride (SiH) surface species organized in (1x1), (3x1), and (2x1) configurations. The results show that desorption from dihydrides involves a pair of neighboring dihydrides linked along the tetrahedral bond direction. Dihydrides in (3x1) domains are separated in the same direction by monohydrides, and desorption from a pair is geometrically impossible. The same desorption mechanism nevertheless applies via first a position switching of dihydrides with neighboring monohydrides. |
URI: | http://dx.doi.org/10.1103/PhysRevLett.94.196103 http://hdl.handle.net/11536/13702 |
ISSN: | 0031-9007 |
DOI: | 10.1103/PhysRevLett.94.196103 |
期刊: | PHYSICAL REVIEW LETTERS |
Volume: | 94 |
Issue: | 19 |
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結束頁: | |
顯示於類別: | 期刊論文 |