THE SURFACE CONTINUUM IN INVERSE PHOTOEMISSION

被引：11

作者：

BRUHWILER, PA ^{[1
]}

WATSON, GM ^{[1
]}

PLUMMER, EW ^{[1
]}

SAGNER, HJ ^{[1
]}

FRANK, KH ^{[1
]}

机构：

[1] MAX PLANCK GESELL,FRITZ HABER INST,W-1000 BERLIN 33,GERMANY

来源：

EUROPHYSICS LETTERS | 1990年 / 11卷 / 06期

关键词：

D O I：

10.1209/0295-5075/11/6/015

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A series of submonolayer coverages of alkali metals on Be(0001) is used to vary the position of the vacuum level (Ev) systematically, and the steplike contribution to the inverse photoemission (IPE) spectrum at Ev is found to shift uniformly with Ev. Steplike intensity onset at Ev is common to almost all IPE spectra from metals in normal incidence, and is observed with a cross-section similar in magnitude to many bulkderived features. We assign the step to emission into surface continuum final states. The available data on the energy dependence of the cross-section of this emission indicates that an unexplored mechanism is responsible. © 1990 The Japan Society of Applied Physics.

引用

页码：573 / 579

页数：7

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