Segregation of Ca ions at the MgO(001) surface studied by neutral beam incidence ion scattering spectroscopy

R. Souda, T. Aizawa, Y. Ishizawa, C. Oshima

研究成果: Article査読

31 被引用数 (Scopus)

抄録

Low energy ion scattering with the use of a neutral He<sup>0</sup> beam (NBISS) has been applied to analyze the structure of MgO(001) with Ca<sup>2+</sup> 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 Ca<sup>2+</sup> ions are substituted for the Mg<sup>2+</sup> ions at the surface and are protruding from the original MgO plane by 0.4±0.1 Å.

本文言語English
ページ(範囲)3218-3223
ページ数6
ジャーナルJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
8
4
DOI
出版ステータスPublished - 1990 7月 1

ASJC Scopus subject areas

  • 凝縮系物理学
  • 表面および界面
  • 表面、皮膜および薄膜

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