Origins of the Exchange-Bias Phenomenology, Coercivity Enhancement, and Asymmetric Hysteretic Shearing in Core-Surface Smart Nanoparticles

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dc.contributor.authorErdem, Riza
dc.contributor.authorYalcin, Orhan
dc.contributor.authorOzum, Songul
dc.contributor.authorCiftci, Nazire
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2016
dc.departmentNiğde ÖHÜ
dc.description.abstractWe have used a spin-1 Ising model Hamiltonian with dipolar (bilinear, J), quadrupolar (biquadratic, K), and dipolar-quadrupolar (odd, L) interactions in pair approximation to investigate the exchange-bias (EB), coercive field, and asymmetric hysteretic shearing properties peculiar to core/surface (C/S) composite nanoparticles (NPs). Shifted hysteresis loops with an asymmetry and coercivity enhancement are observed only in the presence of the odd interaction term in the Hamiltonian expression and their magnitudes show strong dependence on the value of L. The observed coercivity and EB in C/S NPs originated from nonzero odd coupling energies and their dependence on temperature (T) and particle size (R) are also discussed in relation to experimental findings.
dc.description.sponsorshipScientific Research Projects Coordination Unit of Akdeniz University
dc.description.sponsorshipThis work was supported by the Scientific Research Projects Coordination Unit of Akdeniz University.
dc.identifier.doi10.1155/2016/6563274
dc.identifier.issn1687-8108
dc.identifier.issn1687-8124
dc.identifier.scopus2-s2.0-84988714267
dc.identifier.scopusqualityQ3
dc.identifier.urihttps://dx.doi.org/10.1155/2016/6563274
dc.identifier.urihttps://hdl.handle.net/11480/3778
dc.identifier.wosWOS:000383496400001
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherHINDAWI LTD
dc.relation.ispartofADVANCES IN CONDENSED MATTER PHYSICS
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleOrigins of the Exchange-Bias Phenomenology, Coercivity Enhancement, and Asymmetric Hysteretic Shearing in Core-Surface Smart Nanoparticles
dc.typeArticle

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