Surface phonons of clean and hydrogen terminated Si(110) surfaces

被引：14

作者：

Eremtchenko, M

Tautz, FS

Öttking, R

Polyakov, VM

Schwierz, F

Cherkashinin, G

Schaefer, JA

机构：

[1] Tech Univ Ilmenau, Inst Phys, D-98684 Ilmenau, Germany

[2] Tech Univ Ilmenau, Zentrum Mikro & Nanotechnol, D-98684 Ilmenau, Germany

[3] Int Jacobs Univ Bremen, Sch Sci & Engn, D-28759 Bremen, Germany

[4] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA

来源：

SURFACE SCIENCE | 2005年 / 582卷 / 1-3期

关键词：

electron energy loss spectroscopy (EELS); low energy electron diffraction (LEED); silicon; hydrides; low index single crystal surfaces;

D O I：

10.1016/j.susc.2005.03.013

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report an investigation of the dynamical properties of clean and monohydride-terminated Si(I 10) surfaces, measured by means of high resolution electron energy loss spectroscopy (HREELS). On both surfaces a number of surface phonons is observed and successfully assigned to predicted modes. A (1 x 5) reconstruction is found to be the stable surface phase corresponding to monohydride coverage of Si(110). For the Si-H stretching and bending bands of this monohydride Si(110) surface we find a relatively strong dispersion along the [110] direction. Apparently, this is related to the coupling of oscillators along the Si chains of the (1(1) over bar 0) surface. In addition, surface vibrations induced by adsorbed residual gases are measured and analysed. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：159 / 172

页数：14

共 35 条

[1] ATOMIC CONFIGURATION OF HYDROGENATED AND CLEAN SI(110) SURFACES [J].