ADATOM AND REST-ATOM CONTRIBUTIONS IN GE(111)C(2X8) AND GE(111)-SN(7X7) CORE-LEVEL SPECTRA

被引:43
作者
GOTHELID, M
GREHK, TM
HAMMAR, M
KARLSSON, UO
FLODSTROM, SA
机构
[1] Department of Physics, Material Physics, Royal Institute of Technology
来源
PHYSICAL REVIEW B | 1993年 / 48卷 / 03期
关键词
D O I
10.1103/PhysRevB.48.2012
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We have identified the adatom contribution in the Ge 3d core-level spectra from the clean Ge(111)c (2 X 8) surface, shifted 0. 17 eV to higher binding energy compared to the bulk. This adatom component vanishes in the Ge(111)-Sn(7 X 7) surface core-level spectra where Sn occupies the adatom site. Moreover we report the observation of an earlier proposed difference between the rest atoms in the c (2 X 8) structure, and also a shift to lower binding energy for the rest atoms in both structures studied.
引用
收藏
页码:2012 / 2015
页数:4
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