VIBRATIONAL ANISOTROPY OF A CO MONOLAYER ON NI(110)

被引：11

作者：

ROBINSON, IK

FERRER, S

TORRELLAS, X

ALVAREZ, J

VANSILFHOUT, R

SCHUSTER, R

KUHNKE, K

KERN, K

机构：

[1] EUROPEAN SYNCHROTRON RADIAT FACIL,F-38043 GRENOBLE,FRANCE

[2] MAX PLANCK GESELL,FRITZ HABER INST,D-14195 BERLIN,GERMANY

[3] ECOLE POLYTECH FED LAUSANNE,CH-1015 LAUSANNE,SWITZERLAND

来源：

EUROPHYSICS LETTERS | 1995年 / 32卷 / 01期

关键词：

D O I：

10.1209/0295-5075/32/1/007

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have determined the structure of CO/Ni(110) with high accuracy using surface X-ray diffraction. CO molecules are bound in short-bridge sites, tilted alternately to form a lattice with p2mg symmetry. The atomic positions agree well with previous LEED results, but the increased sensitivity permits accurate anisotropic vibrational parameters to be determined as well. We find vibrations which are substantially larger parallel to the surface plane than perpendicular, implying the existence of a low-frequency vibrational mode not seen in an earlier EELS study.

引用

页码：37 / 42

页数：6

共 21 条

[1] HELIUM ATOM SCATTERING STUDIES OF THERMAL-ENERGY VIBRATIONS ON THE CLEAN AND ADSORBATE-COVERED NI(100) SURFACES [J].