FIRST EXPERIMENTAL-DETERMINATION OF AN ADSORPTION SITE USING MULTIPLE WAVE-NUMBER PHOTOELECTRON DIFFRACTION PATTERNS

被引:24
|
作者
ZHARNIKOV, M [1 ]
WEINELT, M [1 ]
ZEBISCH, P [1 ]
STICHLER, M [1 ]
STEINRUCK, HP [1 ]
机构
[1] TECH UNIV MUNICH,DEPT PHYS E20,W-8046 GARCHING,GERMANY
关键词
D O I
10.1103/PhysRevLett.73.3548
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Angular distributions of S2p32 photoelectrons were measured for Ni(111)-p(2×2)S at seven kinetic energies between 130 and 322.5 eV. Using these data, the real space structure around the emitter is reconstructed using the multiple wave number phased-sum algorithm. The reconstructed images allow the unequivocal identification of the fcc adsorption site, with a distance from the S atoms to the top Ni layer of 1.6. This is, to our knowledge, the first example wherein the multiple wave number phased-sum method has successfully been applied to determine an adsorption site from experimental data. © 1994 The American Physical Society.
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页码:3548 / 3551
页数:4
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