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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/11438

Title: Si-H vibrational mode on a H-Si(111)1 × 1 surface with hydrogen deficiency
Authors: Miyauchi, Yoshihiro
Chuat, Hien
Mizutani, Goro
Keywords: Dipole-dipole interaction
Sum frequency generation
hydrogen
silicon
vibration
Issue Date: 2013-03-25
Publisher: Elsevier
Magazine name: Surface Science
Volume: 614
Start page: 24
End page: 29
DOI: 10.1016/j.susc.2013.03.016
Abstract: 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.
Rights: NOTICE: This is the author's version of a work accepted for publication by Elsevier. Yoshihiro Miyauchi, Hien Chuat, Goro Mizutani, Surface Science, 614, 2013, 24-29, http://dx.doi.org/10.1016/j.susc.2013.03.016
URI: http://hdl.handle.net/10119/11438
Material Type: author
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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