ELECTRON MEAN FREE PATHS IN THE ALKALI-METALS

被引：43
|
作者：
WERTHEIM, GK
RIFFE, DM
SMITH, NV
CITRIN, PH
机构：
来源：
PHYSICAL REVIEW B | 1992年 / 46卷 / 04期
关键词：
D O I：
10.1103/PhysRevB.46.1955
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Photoemission data in which the signal from the first atomic layer is well resolved from that of the bulk are used to determine accurately the kinetic-energy dependence of the inelastic-electron mean free path in the alkali metals. At the higher kinetic energies, the data are in very good agreement with the theory of Penn. Below about 10 eV, the mean free path in the heavier alkali metals drops markedly below the theoretical values. This is attributed to electron decay processes involving the unoccupied d bands.
引用
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页码：1955 / 1959
页数：5
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