PROBING HOLLOW ATOM STATES FORMED DURING IMPACT OF HIGHLY-CHARGED IONS ON SURFACES - N-6,N-7+ AND O7+ ON AL(110) AND SI(100)

被引：22

作者：

LIMBURG, J ^{[1
]}

SCHIPPERS, S ^{[1
]}

HUGHES, I ^{[1
]}

HOEKSTRA, R ^{[1
]}

MORGENSTERN, R ^{[1
]}

HUSTEDT, S ^{[1
]}

HATKE, N ^{[1
]}

HEILAND, W ^{[1
]}

机构：

[1] UNIV OSNABRUCK, W-4500 OSNABRUCK, GERMANY

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1995年 / 98卷 / 1-4期

关键词：

D O I：

10.1016/0168-583X(95)00162-X

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This paper presents spectra obtained from the interaction of slow N7+ and O7+ ions interacting with a Si(100) crystal and from N6+ ions interacting with an Al(110) surface at grazing incidence. The spectra show profound structures which, by means of Hartree-Fock atomic structure calculations, allow us to identify the hollow atom states present at the moment of KLL decay. The velocity dependence of the spectra can be explained by a model in which the projectiles L-shell is filled by direct capture of a single target core electron during consecutive binary collisions between projectile and target atoms. The cross section for this capture process is large and, by its localized nature, yields a velocity dependent L-shell filling rate.

引用

页码：436 / 440

页数：5

共 16 条

[1] EMISSION OF ELECTRONS FROM A CLEAN GOLD SURFACE-INDUCED BY SLOW, VERY HIGHLY-CHARGED IONS AT THE IMAGE CHARGE ACCELERATION LIMIT [J].