On the correlations between Sr:Ca substitution and structural modulation in the Bi-2212 phase

Y. Oikawa*, P. P. Saligan, K. Koizumi, H. Enomoto, Y. Takano, K. Sekizawa, E. Uchida, H. Ozaki

*この研究の対応する著者

研究成果: Article査読

抄録

XPS and chemical titration both were carried out on Bi2+xSrl.8CaCu2Oz and Bi2Srl.8-yCal+yCu20zprepared by solid state reaction in order to investigate the correlation between the structural modulation and the mutual substitution of atoms. There was no clear evidence about the correlation between the modulation period by XRD and the site occupancies of Sr and Ca by XPS. However, there was a tendency that Bi mean valence by titration inereased with increasing excess oxygen content and modulation period. The former one indicates the charge compensation and the latter one suggests the possibility of the origin of the structural modulation except for the excess oxygen.

本文言語English
ページ(範囲)1423-1424
ページ数2
ジャーナルCzechoslovak Journal of Physics
46
SUPPL. 3
DOI
出版ステータスPublished - 1996 12月 1

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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