MgO(100) surface relaxation by symmetrized automated tensor low energy electron diffraction analysis

被引:15
作者
Ferry, D
Suzanne, J [1 ]
Panella, V
Barbieri, A
Van Hove, MA
Biberian, JP
机构
[1] Fac Sci Luminy, Dept Phys, CNRS, CRMC2, F-13288 Marseille 9, France
[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA
来源
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS | 1998年 / 16卷 / 04期
关键词
D O I
10.1116/1.581337
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
We present a low energy electron diffraction study of the surface relaxation of MgO(100) at T = 80 K down to the second atomic layer using in situ cleaved MgO crystals. We find that the main perturbation from the bulk structure is a topmost surface layer rumpling of 3.3 +/- 1.5% and a very small second layer rumpling of 0.2 +/- 2%. In both cases the oxygen atom is displaced outward. The first interlayer spacing is slightly reduced by 0.2 +/- 0.7% whereas there is no change in the second interlayer spacing. (C) 1998 American Vacuum Society. [S0734-2101(98)02104-6].
引用
收藏
页码:2261 / 2266
页数:6
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