Sr vacancy segregation by heat treatment at SrTiO3 grain boundary

Teruyasu Mizoguchi, Yukio Sato, James P. Buban, Katsuyuki Matsunaga, Takahisa Yamamoto, Yuichi Ikuhara

研究成果: Contribution to journalArticle査読

45 被引用数 (Scopus)

抄録

Electron energy loss near-edge structures (ELNES) and first-principles band structure calculations were combined in order to identify native defects which are segregated by heat treatments at the vicinity of SrTiO3 grain boundary (GB). Spectral differences between the bulk and the vicinity of GB mainly appear around the second peak of O K ELNES. The spectral differences can be reproduced by calculating the theoretical O K ELNES from the first-nearest-neighbor oxygen to a Sr vacancy. It is therefore concluded that the Sr vacancies are concentrated in the vicinity of GB by the heat treatment.

本文言語英語
論文番号241920
ページ(範囲)1-3
ページ数3
ジャーナルApplied Physics Letters
87
24
DOI
出版ステータス出版済み - 2005
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(その他)

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