TEMPERATURE-DEPENDENCE OF THE XENON-LAYER MORPHOLOGY ON PLATINUM(111) STUDIED WITH SCANNING-TUNNELING-MICROSCOPY

被引：18

作者：

HORCH, S ^{[1
]}

ZEPPENFELD, P ^{[1
]}

COMSA, G ^{[1
]}

机构：

[1] FORSCHUNGSZENTRUM JULICH, FORSCHUNGSZENTRUM, INST GRENZFLACHENFORSCH & VAKUUMPHYS, D-52425 JULICH, GERMANY

来源：

SURFACE SCIENCE | 1995年 / 331卷

关键词：

NOBLE GASES; PLATINUM; SCANNING TUNNELING MICROSCOPY; SURFACE STRUCTURE;

D O I：

10.1016/0039-6028(95)00186-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The temperature induced changes in the morphology of a xenon sub-monolayer adsorbed on a platinum (111) surface have been investigated using a variable temperature scanning tunneling microscope (STM). The morphology changes of Xe layers adsorbed at 17K and annealed in the temperature range between 17 and 34K were compared to the morphologies of Xe layers adsorbed at different temperatures in the same range. Effects of the single Xe atom diffusivity on Pt(lll) as well as of the 2D evaporation rate of the Xe islands could be observed. The corresponding activation energies were estimated to be 0.7 kcal/mol (31 meV) and 1.5 kcal/mol (64 meV), respectively.

引用

页码：908 / 912

页数：5

共 19 条

[1] AN EASILY OPERABLE SCANNING TUNNELING MICROSCOPE [J].