ION-SCATTERING STUDY OF THE RECONSTRUCTION OF MO(100)

被引：22

作者：

HILDNER, ML ^{[1
]}

DALEY, RS ^{[1
]}

FELTER, TE ^{[1
]}

ESTRUP, PJ ^{[1
]}

机构：

[1] SANDIA NATL LABS,LIVERMORE,CA 94551

来源：

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS | 1991年 / 9卷 / 03期

关键词：

D O I：

10.1116/1.577668

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

High energy ion scattering (HEIS) is used to study the clean and hydrogen induced surface reconstructions on Mo(100) at low temperature (80 and 10 K). In conjunction with computer modeling, lateral displacements of 0.12 +/- 0.02 angstrom along the <11> direction and a first-layer inward relaxation of 0.11 +/- 0.03 angstrom for the clean reconstruction are measured. It is also established that the hydrogen saturated surface is bulk-like. In addition the HEIS results, combined with new low-energy electron diffraction data, indicate that even at temperatures as low as 10 K, hydrogen dissociates and diffuses on the surface and, at saturation coverage, quenches the reconstruction.

引用

页码：1604 / 1609

页数：6

共 20 条

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