Cation size mismatch effect in (La1-yREy)(1.4)Ca1.6Mn2O7 perovskite manganites

dc.authorid0000-0002-3944-0367en_US
dc.authorid0000-0002-2752-9671
dc.authorid0000-0002-3133-5693
dc.authorid0000-0002-7280-6754
dc.contributor.authorKoç, Nevin Soylu
dc.contributor.authorAltıntaş, Sevgi Polat
dc.contributor.authorMahamdioua, Nabil
dc.contributor.authorTerzioğlu, Cabir
dc.date.accessioned2021-06-23T19:51:08Z
dc.date.available2021-06-23T19:51:08Z
dc.date.issued2019
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.description.abstractThe size variance (sigma(2)) that indicates random disorder of cations distributed over the A or B-site, has significant influence on the basic quantities on perovskite manganites. In this study, we investigate the effect of A-site variance (sigma(2)(A)) in double layered perovskite manganites. In order to understand how the magneto-electrical properties of layered perovskite type RE2-2xCa1+2xMn2O7 change with sigma(2)(A), we have prepared a series of four samples with optimal doping (x = 0.3) and fixed mean A-cation radius (<r(A)> = 1.3353 angstrom). A-site disorder is varied by use of different rare earth combinations by co-doping of La with Gd, Sm, Nd and Pr. Based on structural analysis by Rietveld profile fitting, all the samples crystallize in Sr3Ti2O7-type tetragonal phase (space group I4/mmm). As sigma(2)(A) increases, paramagnetic (PM) to ferromagnetic (FM) transition temperature shows a linear decrease. However, metal-insulator transition temperature shows a linear correlation with sigma(2). (C) 2019 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.jallcom.2019.05.079
dc.identifier.endpage476en_US
dc.identifier.issn0925-8388
dc.identifier.issn1873-4669
dc.identifier.scopus2-s2.0-85065776771en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage471en_US
dc.identifier.urihttps://doi.org/10.1016/j.jallcom.2019.05.079
dc.identifier.urihttps://hdl.handle.net/20.500.12491/9929
dc.identifier.volume797en_US
dc.identifier.wosWOS:000471128700054en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorKoç, Nevin Soylu
dc.institutionauthorAltıntaş, Sevgi Polat
dc.institutionauthorTerzioğlu, Cabir
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofJournal Of Alloys And Compoundsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectLayered Manganitesen_US
dc.subjectMismatch Effecten_US
dc.subjectCrystal Structureen_US
dc.titleCation size mismatch effect in (La1-yREy)(1.4)Ca1.6Mn2O7 perovskite manganitesen_US
dc.typeArticleen_US

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