FEM STUDY OF OXIDIZED TUNGSTEN SURFACES

被引：4

作者：

SOTOLA, J ^{[1
]}

SAVKIN, V ^{[1
]}

KNOR, Z ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI, INST CHEM PHYS, MOSCOW, RUSSIA

来源：

COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS | 1992年 / 57卷 / 12期

关键词：

D O I：

10.1135/cccc19922481

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Surface reconstruction of tungsten induced by oxygen chemisorption in the temperature range 300 K less-than-or-equal-to T less-than-or-equal-to 2 200 K, has been investigated by means of FEM. Two types of surfaces have been used in this study: (i) hemispherical tungten tips exposing small low index planes and stepped regions to the gas phase; (ii) polyhedral tungsten tips exposing large densely populated planes. A model for the reconstruction of a (100) plane is presented, explaining all the phenomena observed by FEM, TDS, LEED and MBS.

引用

页码：2481 / 2493

页数：13

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