ANGULAR-DEPENDENCE OF CHARGE-TRANSFER PROBABILITIES BETWEEN O- AND A NI(100)-C(2X2)-O SURFACE

被引:35
作者
HSU, CC
BU, H
BOUSETTA, A
RABALAIS, JW
NORDLANDER, P
机构
[1] RICE UNIV,DEPT PHYS,HOUSTON,TX 77251
[2] RICE UNIV,RICE QUANTUM INST,HOUSTON,TX 77251
关键词
D O I
10.1103/PhysRevLett.69.188
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The negative-ion fractions of oxygen directly recoiled from a Ni{100}-c(2x2)-O surface have been measured as a function of both azimuthal and exit angles. The data show a pronounced angular dependence of the ion fractions. A theoretical analysis suggests that the probability for charge transfer between an oxygen atom and the surface varies strongly with lateral position. The experiments provide a 3D map of the local electron tunneling rates within the surface unit cell.
引用
收藏
页码:188 / 191
页数:4
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