Tuning of the superconducting and ferromagnetic transitions by Cu doping for Ru in GdSr2RuCu2O8

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dc.creatorJanaki, J.
dc.creatorKumary, T. Geetha
dc.creatorNagarajan, R.
dc.creatorMary, T. A.
dc.creatorValsakumar, M. C.
dc.creatorSastry, V. S.
dc.creatorHariharan, Y.
dc.creatorRadhakrishnan, T. S.
dc.date2003-03-15
dc.date.accessioned2026-07-07T02:50:11Z
dc.date.available2026-07-07T02:50:11Z
dc.descriptionIn order to explore the possibility of tuning superconducting and ferromagnetic transitions by Cu doping (for Ru) in GdSr2RuCu2O8, we have carried out synthesis and characterization of GdSr2Ru{1-x}Cu{2+x)O8 (x = 0, 0.05, 0.1, 0.2) and studied their physical properties. Coexistence of superconductivity and ferromagnetism is observed in all the Cu doped samples studied here. The zero field susceptibility data suggests formation of a spontaneous vortex phase. Cu doping decreases the ferromagnetic Curie temperature, whereas the superconducting transition temperature increases until an optimal concentration x~0.1. This reflects an increase in hole transfer to the CuO2 planes and reduction of ferromagnetic order within the ruthenate layers.
dc.description7 pages, 6 figures, latex, contact: jjanaki@igcar.ernet.in
dc.identifierhttps://arxiv.org/abs/cond-mat/0303287
dc.identifierhttp://arxiv.org/abs/cond-mat/0303287
dc.identifierMaterials Chemistry and Physics 75 (2002) 110-116
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21023
dc.subjectSuperconductivity
dc.titleTuning of the superconducting and ferromagnetic transitions by Cu doping for Ru in GdSr2RuCu2O8
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