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Superconductivity in Ru(1-x)Sr2GdCu(2+x)O(8-y) Compounds

P. W. Klamut·B. Dabrowski·S. Kolesnik·M. Maxwell·J. Mais
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Abstract

We report on the properties of new ruthenocuprates Ru(1-x)Sr2GdCu(2+x)O(8-y) (x=0, 0.1, 0.2, 0.3, 0.4, 0.75) that extend the superconductivity found previously in RuSr2GdCu2O8 (Tc=45 K) to the solid solution with varied Ru/Cu ratios. The compounds have been synthesized in high-pressure oxygen atmosphere. The maximum temperature of the superconducting transition is 72 K for the x=0.3 and 0.4 compositions. The reported behavior of magnetization at low temperatures can be qualitatively explained assuming a quasi-two-dimensional character of the superconducting regions in compounds studied.

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P. W. Klamut, B. Dabrowski, S. Kolesnik, M. Maxwell, J. Mais. 2001-02-05. Superconductivity in Ru(1-x)Sr2GdCu(2+x)O(8-y) Compounds. https://doi.org/10.1103/physrevb.63.224512

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