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

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

doi:10.2497/jjspm.41.1481

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

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

Research output: Contribution to journal › Article › peer-review

Abstract

We measured complex susceptibilities of Sr-doped YBa₂Cu₃O_7-d superconductors, YBa_2-xSr_xCu₃O_7-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 YBa₂Cu₄O_y. 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.

Original language	English
Pages (from-to)	1481-1486
Number of pages	6
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	41
Issue number	12
DOIs	https://doi.org/10.2497/jjspm.41.1481
Publication status	Published - 1994 Feb 1
Externally published	Yes

ASJC Scopus subject areas

Mechanical Engineering
Metals and Alloys
Industrial and Manufacturing Engineering
Materials Chemistry

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Complex Susceptibilities of Sr-doped YBa2Cu3O7-d Synthesized by the Polymerized Complex Method. / Mazaki, Hiromasa; Yasuoka, Hiroshi; Kakihana, Masato; Osada, Minoru; Yoshimura, Masahiro.

In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 41, No. 12, 01.02.1994, p. 1481-1486.

Research output: Contribution to journal › Article › peer-review

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abstract = "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.",

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AU - Yoshimura, Masahiro

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