2-PHONON BOUND-STATE FOR THE HYDROGEN VIBRATION ON THE H/SI(111) SURFACE

被引：117

作者：

GUYOTSIONNEST, P

机构：

[1] Laboratoire Pour l'Utilisation du Rayonnement Electromagnétique, Centre Universitaire Paris(enSud

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.67.2323

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The upsilon-1 --> 2 hot band of the Si-H stretching vibration of the H/Si(111) 1 x 1 surface is investigated using picosecond sum-frequency generation. The hot band is probed after directly exciting the fundamental upsilon-0 --> 1 and is found to be 90 cm-1 lower than the fundamental. The shift is consistent with the Si-H anharmonicity in the gas phase and a small dispersion (11 cm-1) for the surface layer, implying a strong two-phonon bound state.

引用

页码：2323 / 2326

页数：4

共 24 条

[1]

ALBRECHT AC, 1961, J CHEM PHYS, V33, P1475

[2] DOUBLE LOSSES AND OVERTONES IN ELECTRON-ENERGY-LOSS STUDIES OF SURFACE VIBRATIONS - THE ROLE OF LATERAL INTERACTIONS [J].