ELECTRONIC EXCITATIONS ON SILVER SINGLE-CRYSTAL SURFACES

被引：22

作者：

ROCCA, M ^{[1
]}

VALBUSA, U ^{[1
]}

机构：

[1] INFM,I-16146 GENOA,ITALY

来源：

SURFACE SCIENCE | 1993年 / 287卷 / pt B期

关键词：

D O I：

10.1016/0039-6028(93)91069-2

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：

Recent results are presented of surface electronic excitations on Ag single crystals. For small q(parallel-to) the data show a linear and Positive dispersion of the surface plasmon for all faces, whose slope depends on crystallographic face, and a strong azimuthal anisotropy in case of Ag(110). This demonstrates that the centroid of the induced charge for frequencies equal to the surface plasmon frequency is placed inside the surface. Different mechanisms determine surface plasmon damping. Face dependence is caused by the presence of face specific surface states. The dependence on crystal temperature is discussed.

引用

页码：770 / 775

页数：6

共 39 条

[1] LONG-RANGE SCATTERING OF ELECTRONS BY ELECTRON-HOLE PAIR EXCITATIONS AT METAL-SURFACES [J].