Formation of the Pb-added Bi-2212 phase

Makoto Hayashi; Minoru Fukuhara; Akira Doi; Naoya Kobayashi; Yasunori Ikeda; Mikio Takano; Yoshichika Bando; Yoshihiro Kusano; Jun Takada

doi:10.2497/jjspm.41.1492

Makoto Hayashi, Minoru Fukuhara, Akira Doi, Naoya Kobayashi, Yasunori Ikeda, Mikio Takano, Yoshichika Bando, Yoshihiro Kusano, Jun Takada

Author information

Makoto Hayashi
Faculty of Engineering, Okayama University of Science
Minoru Fukuhara
Faculty of Engineering, Okayama University of Science
Akira Doi
Faculty of Engineering, Okayama University of Science
Naoya Kobayashi
Faculty of Engineering, Okayama University
Yasunori Ikeda
Faculty of Engineering, Okayama University
Mikio Takano
Faculty of Engineering, Okayama University
Yoshichika Bando
Faculty of Engineering, Okayama University
Yoshihiro Kusano
Institute for Chemical Research, Kyoto University
Jun Takada
Institute for Chemical Research, Kyoto University

JOURNAL OPEN ACCESS

1994 Volume 41 Issue 12 Pages 1492-1496

DOI https://doi.org/10.2497/jjspm.41.1492

Details

Abstract

The compositional range and the structure of the solid solution of the Pb-added 2212 phase
has been studied in Bi₂Sr_3-xCa_xCu₂Pb_yO_z heated in Ar at 795°C to 822°C. The monophasic compositional range increases as x decreases. For x=1.25 monophasic products with y≤0.6 can be obtained. The structure symmetry changes from tetragonal in y≤0.3 to orthorhombic in y≥0.4. The monophasic compositional range and the Pb-compositional dependence of the lattice parameters in the Pb-added 2212 phase are remarkably different from those in Bi_2-yPb_ySr_1.5Ca_1.5Cu₂O_z reported so far. Tc decreases as y increases.

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