Origin of the martensitic and austenitic phase transition in core-surface smart nanoparticles with size effects and hysteretic splitting

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dc.contributor.authorYalcin, Orhan
dc.contributor.authorErdem, Riza
dc.contributor.authorOzum, Songul
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2014
dc.departmentNiğde ÖHÜ
dc.description.abstractBlume-Emery-Griffiths model is used to study the effects of the bilinear and biquadratic exchange interactions as well as crystal field interaction on the magnetic properties of core-surface smart nanoparticles. From the minimization of the free energy in pair approximation in Kikuchi version, a set of equations for the bond variables and magnetization are derived. Based on the numerical solutions of these equations, magnetization and hysteresis curves are obtained. Besides the first-and second-order phase transitions, martensitic and austenitic phase regions are observed in the phase diagrams of homogeneous and composite nanoparticles and the origin of martensitic transitions (MT)-austenitic transitions (AT) is investigated. It is found that MT-AT occurred for a nonzero biquadratic exchange parameter. On the other hand, nonzero single-ion anisotropy caused the hysteretic splitting in core-surface type nanoparticles. Martensitic and austenitic results of nanoparticles agree with the experimental results in literature. (c) 2014 AIP Publishing LLC.
dc.identifier.doi10.1063/1.4864489
dc.identifier.issn0021-8979
dc.identifier.issn1089-7550
dc.identifier.issue5
dc.identifier.scopus2-s2.0-84906875027
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://dx.doi.org/10.1063/1.4864489
dc.identifier.urihttps://hdl.handle.net/11480/4200
dc.identifier.volume115
dc.identifier.wosWOS:000331645900085
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherAMER INST PHYSICS
dc.relation.ispartofJOURNAL OF APPLIED PHYSICS
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.titleOrigin of the martensitic and austenitic phase transition in core-surface smart nanoparticles with size effects and hysteretic splitting
dc.typeArticle

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