OBSERVATION OF DIRECT VIBRATIONAL-EXCITATION IN COLLISIONS OF H-2 AND D2 WITH A CU(111) SURFACE

被引：120

作者：

RETTNER, CT ^{[1
]}

AUERBACH, DJ ^{[1
]}

MICHELSEN, HA ^{[1
]}

机构：

[1] STANFORD UNIV,STANFORD,CA 94305

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.68.2547

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have observed the direct vibrational excitation (v = 0 --> v = 1) of H-2 and D2 molecules colliding with a Cu(111) surface. The dependence of this process on kinetic energy is found to be similar for both molecules, resembling the function determined for dissociative chemisorption of molecules in the v = 0 state. This suggests that translational-vibrational coupling is strong only when molecules closely approach the dissociation barrier.

引用

页码：2547 / 2550

页数：4