Origin of the silver doping effects on superconducting oxide ceramics

Yasumichi Matsumoto, Jukichi Hombo, Yoshiaki Yamaguchi, Minoru Nishida, Akira Chiba

研究成果: Contribution to journalArticle査読

45 被引用数 (Scopus)

抄録

The origin of silver doping effects on Y-Ba-Cu-O superconducting ceramics, such as a high-temperature shift of the point at zero resistivity in resistivity measurements and an increase in critical current density, was sought by transmission electron microscopy observations. Sintering was strongly promoted together with suppression of the formation of the liquid phase in the grain boundaries by silver. Consequently, the liquid phase, which is not a superconductor, was not present in almost all the grain boundaries of the silver-doped ceramics, while this phase was present in almost all the grain boundaries in pure ceramics.

本文言語英語
ページ(範囲)1585-1587
ページ数3
ジャーナルApplied Physics Letters
56
16
DOI
出版ステータス出版済み - 1990
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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