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dc.contributor.authorSumi, S-
dc.contributor.authorPrabhakar Rao, P-
dc.contributor.authorPeter Koshy-
dc.date.accessioned2016-06-21T06:24:45Z-
dc.date.available2016-06-21T06:24:45Z-
dc.date.issued2015-05-
dc.identifier.citationCeramics International 41(4):5992-5998,May 2015en_US
dc.identifier.urihttp://hdl.handle.net/123456789/2324-
dc.description.abstractThe effectofsimultaneoussubstitutionsofMninbothAandBsitesofthepyrochloretypesemiconductingoxides:(CaCe1 2xMn2x) (Sn1 xMnxINb)O7 δ (x¼0, 0.1,0.2,0.3and0.4)ontheelectricalconductionandrelaxationwasstudiedindetailusingimpedanceanalysisasa function offrequencyoverawiderangeoftemperature.Impedanceandmodulusanalysisclearlyexplaintherelaxationinthesematerialsandits dependence onMnconcentration.GrainboundarydominantelectricalcharacteristicshavebeenobservedwithprogressiveMnsubstitution. Correlated barrierhoppingmodelwassuccessfullyappliedforexplainingtheconductionmechanisminthesecompounds.Variationofhopping parameters withMnsubstitutioninthesematerialsindicatesstrongdependenceonthegrainandgrainboundarycontributions.Thisinsighttothe conduction mechanismofthesystemoffersintuningtheelectricalpropertiesfordesiredapplicationssuchasNTCthermistorsen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectImpedance; Electricalconductivity;Electricalpropertiesen_US
dc.titleImpedance spectroscopic investigation on electrical conduction and relaxation in manganese substituted pyrochlore type semiconducting oxidesen_US
dc.typeArticleen_US
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