SEGREGATION OF CA IONS AT THE MGO(001) SURFACE STUDIED BY NEUTRAL BEAM INCIDENCE ION-SCATTERING SPECTROSCOPY

被引:28
作者
SOUDA, R [1 ]
AIZAWA, T [1 ]
ISHIZAWA, Y [1 ]
OSHIMA, C [1 ]
机构
[1] WASEDA UNIV,SCH SCI & ENGN,SHINJYUKU KU,TOKYO 160,JAPAN
来源
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS | 1990年 / 8卷 / 04期
关键词
D O I
10.1116/1.576566
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Low energy ion scattering with the use of a neutral He0beam (NBISS) has been applied to analyze the structure of MgO(001) with Ca2 +impurities segregated from the bulk. The NBISS technique successfully avoids specimen charging, which is a common obstacle to analyzing the insulating surface by using ordinary ion scattering techniques. It is found that the segregated Ca2 +ions are substituted for the Mg2 +ions at the surface and are protruding from the original MgO plane by 0.4 ±0.1 A. © 1990, American Vacuum Society. All rights reserved.
引用
收藏
页码:3218 / 3223
页数:6
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