Crystal structure and superconductivity in Ba2Y1-xPrxCu3O7-y

Kyoichi Kinoshita, Azusa Matsuda, Hiroyuki Shibata, Takao Ishii, Takao Watanabe, Tomoaki Yamada

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Abstract

Crystal structures and superconductive properties of the solid solution Ba2Y1-xPrxCu3O7-y (0≤x≤1) are studied. Although Ba2Y1-xPrx Cu3O7-y has an orthorhombic structure which is isomorphic with Ba2YCu3O7-y, Tc decreases monotonically with increasing Pr concentration, and superconductivity disappears at around x=0.6. The Rietveld analysis of X-ray powder diffraction data shows that both Cu(1)-O(3) bond length and the structural asymmetry of the Cu(2)O2 planes increase by the substitution of Pr for Y. Such structural changes induced the carrier density reduction and localization effects, which may cause the suppression of superconductivity in this system.

Original languageEnglish
Pages (from-to)1642-1645
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume27
Issue number9
Publication statusPublished - 1988 Sep
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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