Superconductivity at 11.3 K induced by cobalt doping in CeOFeAs

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dc.creatorPrakash, J.
dc.creatorSingh, S. J.
dc.creatorPatnaik, S.
dc.creatorGanguli, A. K.
dc.date2008-10-08
dc.date.accessioned2026-07-07T12:55:14Z
dc.date.available2026-07-07T12:55:14Z
dc.descriptionPure phases of a new oxyarsenide superconductor of the nominal composition CeOFe0.9Co0.1As was successfully synthesized by solid state reaction in sealed silica ampoules at 1180 C. It crystallizes in the layered tetragonal ZrCuSiAs type structure (sp gp P4/nmm) with lattice parameter of a = 3.9918(5) angstrom and c = 8.603(1) angstrom. A sharp superconducting transition is observed at 11.31 K with an upper critical field of 45.22 T at ambient pressure. The superconducting transition temperature is drastically lowered (~ 4.5, 4.9 K) on increasing the concentration (x = 0.15, 0.2) of cobalt.
dc.identifierhttps://arxiv.org/abs/0810.1364
dc.identifierhttp://arxiv.org/abs/0810.1364
dc.identifierSolid State Communications 149 (2009) 181-183
dc.identifierdoi:10.1016/j.ssc.2008.11.028
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/224189
dc.subjectSuperconductivity
dc.subjectMaterials Science
dc.titleSuperconductivity at 11.3 K induced by cobalt doping in CeOFeAs
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