THEORY OF ION-STIMULATED ELECTRON-EMISSION FROM SIMPLE METALS - EXPLICIT CALCULATIONS

被引:8
作者
GASPAR, JA
EGUILUZ, AG
MILLS, DL
机构
[1] OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37831
[2] UNIV TENNESSEE,DEPT PHYS & ASTRON,KNOXVILLE,TN 37996
[3] OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37831
[4] UNIV CALIF IRVINE,DEPT PHYS,IRVINE,CA 92717
来源
PHYSICAL REVIEW B | 1995年 / 51卷 / 20期
关键词
D O I
10.1103/PhysRevB.51.14604
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We apply a description of ion-stimulated electron emission from metals developed earlier by one of us [D. L. Mills, Surf. Sci. 294, 161 (1993)] to ions which strike aluminum metal at both grazing and normal incidence. The electronic response of the substrate is modeled within the jellium picture. For grazing incidence, we employ realistic ion trajectories which allow penetration of the ions into the metal. The substrate response is described microscopically, so a proper description of short-wavelength aspects is incorporated fully in our calculations. Response functions employed are those for a jellium slab, so that electron emission mediated by bulk plasmons is described. Our results reproduce very well the experimental data reported by Rau, for the case of grazing incidence. In addition, we present calculations for the case of normal incidence. © 1995 The American Physical Society.
引用
收藏
页码:14604 / 14611
页数:8
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