SITE-SPECIFIC HYDROGEN REACTIVITY AND REVERSE CHARGE-TRANSFER ON GE(111)-C(2X8)

被引:45
作者
KLITSNER, T
NELSON, JS
机构
关键词
D O I
10.1103/PhysRevLett.67.3800
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Scanning tunneling microscopy (STM) and first-principles pseudopotential calculations are used to show that the equilibrium binding site for hydrogen on Ge(111)-c(2x8) is the rest-atom site. Our calculations show the hydrogen-rest-atom configuration is 0.7 eV lower in energy than the hydrogen-adatom configuration. Reaction at the rest-atom site causes very local rest-atom to adatom reverse charge transfer, and this site-specific chemistry is imaged directly using STM measurements in combination with these calculations.
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页码:3800 / 3803
页数:4
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