Si-H vibrational mode on a H-Si(111)1 × 1 surface with hydrogen deficiency

• Miyauchi, Yoshihiro

• Chuat, Hien

• Mizutani, Goro

抄録

We used a dipole coupling theory to calculate modulations of the Si-H vibrational mode on a H-Si(111)1×1 surface, and analyzed the observed optical sum frequency generation (SFG) spectra. As the hydrogen coverage decreased the peak position of the Si-H vibrational mode shifted to the red side in the experimental SFG spectra [Hien et al, Surf. Int. Anal., 44 662 (2012)]. The calculated peak shift was quantitatively consistent with the observed redshift, indicating that the peak shift can be attributed to dipole coupling among the Si-H oscillators. On the other hand, the experimental peak widths at lower coverages were wider than those of the calculated peaks. This suggests that local structural defects and/or dangling bonds modulated the vibration of the surrounding Si-H oscillators.

identifier:https://dspace.jaist.ac.jp/dspace/handle/10119/11438

収録刊行物

• Surface Science

  Surface Science 614 24-29, 2013-03-25

  Elsevier

キーワード

• Dipole-dipole interaction
• Sum frequency generation
• hydrogen
• silicon
• vibration

詳細情報

• CRID: 1050845762468524800
• NII論文ID: 120005300537
• ISSN: 00396028
• DOI: 10.1016/j.susc.2013.03.016
• Web Site: http://hdl.handle.net/10119/11438
• Web Site: https://api.elsevier.com/content/article/PII:S0039602813000988?httpAccept=text/xml
• Web Site: https://api.elsevier.com/content/article/PII:S0039602813000988?httpAccept=text/plain
• 本文言語コード: en
• 資料種別: journal article
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