Magnetotransport and magnetoresistance properties of Pr 0.68Ca0.32-xSrxMnO3 (x= 0, 0.1, 0.18, 0.26 and 0.32) manganites

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dc.authorscopusid23050854600
dc.authorscopusid6506016754
dc.authorscopusid6506484583
dc.authorscopusid56186583600
dc.authorscopusid8293286800
dc.authorscopusid8379276400
dc.contributor.authorIzgi T.
dc.contributor.authorKolat V.S.
dc.contributor.authorBayri N.
dc.contributor.authorKaya A.O.
dc.contributor.authorGencer H.
dc.contributor.authorAtalay S.
dc.date.accessioned2024-08-04T20:02:25Z
dc.date.available2024-08-04T20:02:25Z
dc.date.issued2011
dc.departmentİnönü Üniversitesien_US
dc.description.abstractIn this study, the magnetotransport and magnetoresistance properties of Pr0.68Ca0.32-xSrxMnO3 (x= 0, 0.1, 0.18, 0.26 and 0.32) compounds were investigated. The system illustrate an evolution from a charge-ordered manganite at x = 0, with an insulating-like resistivity and low magnetization values, towards to a completely ferromagnetic metallic state for x = 0.32. Above the metal-insulator transition temperature TMI, the resistance curves were fitted to the small polaron popping model. The activation energy (Ea) was found to decrease with increasing Sr content. In the phase separated (PS) state, due to the coexistence of ferromagnetic (FM) metallic and charge order (CO) insulating phases, the magnetoresistance (MR) was found to be maximum. The MR ratio of 6.3x10 8 for the sample x = 0 at 60 K is one of the largest MR change has been reported in manganites. The MR values decreases considerably with increasing Sr content and the activation energy decreases with the increase of Sr content.en_US
dc.identifier.endpage655en_US
dc.identifier.issn1454-4164
dc.identifier.issue6en_US
dc.identifier.scopus2-s2.0-80053009326en_US
dc.identifier.scopusqualityQ4en_US
dc.identifier.startpage648en_US
dc.identifier.urihttps://hdl.handle.net/11616/91654
dc.identifier.volume13en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherNational Institute of Optoelectronicsen_US
dc.relation.ispartofJournal of Optoelectronics and Advanced Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectColossal magnetoresistanceen_US
dc.subjectManganitesen_US
dc.subjectMetal-insulator transitionen_US
dc.subjectTransport and magnetic propertiesen_US
dc.titleMagnetotransport and magnetoresistance properties of Pr 0.68Ca0.32-xSrxMnO3 (x= 0, 0.1, 0.18, 0.26 and 0.32) manganitesen_US
dc.typeArticleen_US

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