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dc.contributor.authorYurtseven, Hasan Hamiten_US
dc.contributor.authorTarı, Özlemen_US
dc.date.accessioned2021-12-30T15:28:02Z
dc.date.available2021-12-30T15:28:02Z
dc.date.issued2022en_US
dc.identifier.citationYurtseven, H., & Tari, O. (2021). MAGNETIC TRANSITIONS IN TWO NOVEL MIXED-VALENCE IRON (II)–IRON (III) METAL FORMATE FRAMEWORKS: TWO SUBLATTICE MODEL. Journal of Magnetism and Magnetic Materials, 168924.en_US
dc.identifier.issn03048853
dc.identifier.urihttps://doi.org/10.1016/j.jmmm.2021.168924
dc.identifier.urihttps://hdl.handle.net/20.500.12294/2913
dc.description.abstractWe study the two-sublattice model in the mean field theory by expanding the Gibbs free energy in terms of the magnetizations M1 (Mup) and M2 (Mdown) with the quadratic coupling M12M22 (quadrupolar interactions) for the order–disorder transition in the two mixed-valence iron (II)-iron (III) metal formate frameworks, C2H5NH3FeIIFeIIIHCOO6 and C2H52NH2FeIIFeIIIHCOO6. Expressions derived from the Gibbs free energy for the temperature dependence of the magnetizations M1 and M2, are fitted to the observed data (H=100Oe) from the literature for the two mixed-valence iron (II) – iron (III) system. The inverse susceptibilities (χ1-1 and χ2-1) are predicted as a function of temperature (H=100Oe) from the two-sublattice model. Additionally, the field dependence of the total magnetization (M=M1+M2) is analyzed using the literature data for the compounds studied. We find that the two-sublattice model with the quadrupolar interactions, is satisfactory to describe the order–disorder transition in the two mixed-valence iron (II) – iron (III) metal formate frameworks as studied here. It indicates that the two-sublattice model can also be applied to some other multiferroic mixed materials.en_US
dc.language.isoengen_US
dc.publisherElsevier B.V.en_US
dc.relation.ispartofJournal of Magnetism and Magnetic Materialsen_US
dc.identifier.doi10.1016/j.jmmm.2021.168924en_US
dc.identifier.doi10.1016/j.jmmm.2021.168924
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectMagnetic Propertiesen_US
dc.subjectOrder – Disorder Transitionen_US
dc.subjectTwo Mixed-Valence Iron (II) – Iron (III) Metal Formate Frameworksen_US
dc.subjectTwo-Sublattice Modelen_US
dc.titleMagnetic Transitions in Two Novel Mixed-Valence Iron(Ii)–Iron(Iii) Metal Formate Frameworks : Two Sublattice Modelen_US
dc.typearticleen_US
dc.departmentFen-Edebiyat Fakültesi, Matematik-Bilgisayar Bölümüen_US
dc.authorid0000-0001-7127-5915en_US
dc.identifier.volume546en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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