Electronic processes near kinematic threshold for grazing scattering of fast hydrogen atoms from a LiF(001) surface

被引:6
作者
Lederer, S
Mertens, A
Winter, H
Aumayr, F
Winter, HP
Staemmler, V
机构
[1] Humboldt Univ, Inst Phys PGD, D-10115 Berlin, Germany
[2] Ruhr Univ Bochum, Inst Theoret Chem, D-44801 Bochum, Germany
[3] Vienna Tech Univ, Inst Allgemeine Phys, A-1040 Vienna, Austria
关键词
ion surface scattering; electron emission; insulator; threshold study; hydrogen atoms;
D O I
10.1016/S0168-583X(02)02168-7
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
In coincident studies on projectile energy loss and number distributions of emitted electrons for scattering of hydrogen atoms from an atomically clean and flat LiF(0 0 1) surface we derive probabilities for emission of electrons and production of surface excitons near their respective kinematic thresholds. We analyze our data in terms of electron transfer in binary atomic collisions with one collision partner being embedded at the anion site of an ionic crystal and derive information on the energy defects in these collisions. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:23 / 28
页数:6
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