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- W2565163367 abstract "In this communication ,the effect of electron beam(EB) irradiation on the structural,electrical transportand thermal properties of Pr0.8Sr0.2MnO3 manganites has been investigated. Rietveld refinement ofXRDdata reveals that all samples are single phased withorthorhombicdistortedstructure(Pbnm). It is ob-served that the orthorhombicdeformationincreaseswith EB dosage. TheMn–O–Mn bondangleis found to increase with increase in EB dosage, presumably due to strain in duced by the seirradiations. Analysis on themeasuredelectricalresistivitydataindicatesthatthesmallpolaronhoppingmodelisoperativeinthe hightemperatureregionforpristineaswellas EB irradiatedsamples.Theelectricalresistivityintheentire temperatureregionhasbeensuccessfully fitted withthephenomenologicalpercolationmodelwhich isbasedonphasesegregationofferromagneticmetallicclustersandparamagneticinsulatingregions. TheSeebeckcoefficient (S) ofthepristineaswellastheirradiatedsamplesexhibitpositivevalues,indicatingthatholesisthedominantchargecarriers.TheanalysisofSeebeckcoefficient dataconfirms thatthesmallpolaronhoppingmechanismgovernsthethermoelectrictransportinthehightemperatureregion.Inaddition,Seebeckcoefficient dataalsoiswell fitted withthephenomenologicalpercolation model.Thebehaviorinthermalconductivityatthetransitionisascribedtothelocalan-harmonic distortionsassociatedwithsmallpolarons.Specific heatmeasurementindicatesthatelectronbeam irradiationenhancesthemagneticinhomogeneityofthesystem" @default.
- W2565163367 created "2017-01-06" @default.
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- W2565163367 date "2016-01-01" @default.
- W2565163367 modified "2023-09-26" @default.
- W2565163367 title "Influence ofelectronbeamirradiationonelectrical,structural,magnetic andthermalpropertiesofPr0.8Sr0.2MnO3 manganites" @default.
- W2565163367 hasPublicationYear "2016" @default.
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