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

页码：3218 / 3223

页数：6

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