Complex Susceptibilities of Sr-doped YBa2Cu3O7-d Synthesized by the Polymerized Complex Method

Hiromasa Mazaki, Hiroshi Yasuoka, Masato Kakihana, Minoru Osada, Masahiro Yoshimura

研究成果: Article査読

抄録

We measured complex susceptibilities of Sr-doped YBa2Cu3O7-d superconductors, YBa2-xSrxCu3O7-d (x=0-1.0) and determined the onset temperature of the superconducting transition. The samples were synthesized by the modified polymerized complex method. With increasing x, the onset temperature decreased, although the depletion was not large as those for Sr-doped YBa2Cu4Oy. Measurements of the phonon Raman spectra have revealed that with increasing x the frequencies of the Ba, Cu(2) and apex oxygen O(4) vibrational modes along c-axis change. Besides, at about 570 cm-1, a small growth of a peak was observed with increasing x, which may be caused by oxygen disorder in the CuO chains. But no appreciable changes in hole density were found from optical absorption spectra.

本文言語English
ページ(範囲)1481-1486
ページ数6
ジャーナルjournal of the japan society of powder and powder metallurgy
41
12
DOI
出版ステータスPublished - 1994 2 1
外部発表はい

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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