Green's function approach of an anisotropic Heisenberg ferrimagnetic system

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dc.contributor.authorMert, Gulistan
dc.date.accessioned2020-03-26T18:42:05Z
dc.date.available2020-03-26T18:42:05Z
dc.date.issued2013
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractWe have investigated the influence of the exchange anisotropy parameter on the magnetization, critical and compensation temperatures and susceptibility of the anisotropic Heisenberg ferrimagnetic system with the single-ion anisotropy under an external magnetic field using the double-time temperature-dependent Green's function theory. In order to decouple the higher order Green's functions, Anderson-Callen's decoupling and random phase approximations have been used. This model is useful for understanding the temperature dependence of total magnetization of Lithium-chromium ferrites Li0.5Fe1.25Cr1.25O4 for which negative magnetization is characteristic. We observe that the critical temperature increases when the exchange anisotropy increases. When the system is under an external magnetic field, one obtains the first-order phase transition where the magnetization jumps for all the values of the exchange anisotropy parameters. (c) 2013 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.jmmm.2013.07.051en_US
dc.identifier.endpage110en_US
dc.identifier.issn0304-8853en_US
dc.identifier.issn1873-4766en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage105en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.jmmm.2013.07.051
dc.identifier.urihttps://hdl.handle.net/20.500.12395/29547
dc.identifier.volume347en_US
dc.identifier.wosWOS:000324811500020en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.relation.ispartofJOURNAL OF MAGNETISM AND MAGNETIC MATERIALSen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectAnisotropic Heisenberg modelen_US
dc.subjectFerrimagnetic systemen_US
dc.subjectGreen's functionen_US
dc.subjectCompensation pointen_US
dc.titleGreen's function approach of an anisotropic Heisenberg ferrimagnetic systemen_US
dc.typeArticleen_US

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