Substitution of Ru by Cu in the synthesis of ceramicRuSr2GdCu2O8

E Sader; A T Matveev; H-U Habermeier

doi:10.1088/0953-2048/19/8/L01

Superconductor Science and Technology

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Substitution of Ru by Cu in the synthesis of ceramic RuSr₂GdCu₂O₈

E Sader, A T Matveev and H-U Habermeier¹

Published 12 June 2006 • IOP Publishing Ltd
Superconductor Science and Technology, Volume 19, Number 8 Citation E Sader et al 2006 Supercond. Sci. Technol. 19 L29 DOI 10.1088/0953-2048/19/8/L01

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¹ Max-Planck Institute for Solid State Research, Stuttgart, Heisenberg Straße 1, Stuttgart 70569, Germany

² Author to whom any correspondence should be addressed. Permanent address: Physics Department, Birzeit University, Birzeit, West Bank, Palestine

³ Permanent address: Chemistry Department, Lomonosov MSU, 119992 Moscow, Russia

Dates

Received 9 February 2006
Published 12 June 2006

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Abstract

Our research targets the study of the interaction and coupling between the two states, magnetic and superconducting, coexisting in the hybrid ruthenocuprates RuSr₂GdCu₂O₈ (Ru-1212). While the magnetic phase arises from RuO₂ layers, and the superconducting (SC) phase originates in the CuO₂ planes, it is worth observing and investigating how the properties of these phases change under the substitution of Ru by Cu in this material. In order to study the effects of the annealing parameters and the substitution of Ru by Cu on the magnetic and SC properties of Ru-1212, five Cu-doped polycrystalline ceramic samples Ru_1−xSr₂GdCu_2+xO_8−δ (x = 0–0.4) were synthesized and annealed under oxygen pressure at temperatures of 1039 and 1058 °C respectively.

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Substitution of Ru by Cu in the synthesis of ceramic RuSr2GdCu2O8