Surface vibrational modes of α-quartz(0001) probed by sum-frequency spectroscopy

被引：48

作者：

Liu, Wei-Tao ^{[1
]}

Shen, Y. R. ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.101.016101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Infrared-visible sum-frequency spectroscopy was used to probe surface vibrations of alpha-quartz(0001) under ambient conditions. Two modes at 880 and 980 cm(-1) were observed and identified as arising from Si-O-Si and Si-OH structures of the surface. Heat treatment and hydroxylation could convert Si-OH to Si-O-Si and vice versa. The technique is generally applicable to studies of surface phonons of other oxides, semiconductors, and insulators.

引用

页数：4

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