Magnetic field dependence of magnetic coupling in CoCr2O4 nanoparticles

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dc.authoridadanur, idris/0000-0002-0160-5074
dc.authoridEkicibil, Ahmet/0000-0003-3071-0444
dc.authoridAkyol, Mustafa/0000-0001-8584-0620
dc.contributor.authorAkyol, Mustafa
dc.contributor.authorAdanur, Idris
dc.contributor.authorAyas, Ali Osman
dc.contributor.authorEkicibil, Ahmet
dc.date.accessioned2025-01-06T17:43:46Z
dc.date.available2025-01-06T17:43:46Z
dc.date.issued2017
dc.description.abstractCoCr2O4 spinel nanoparticles synthesized by sol-gel method have been worked extensively by performing structural and magnetic characterization techniques, as well as modeling the experimental results. The microstructure analysis shows that the crystallite size of CoCr2O4 nanoparticles, which are purely crystallized in cubic phase with space group Fd3m, is similar to 75 nm. The grain size distribution determined from scanning electron microscope images indicates that the particles are uniformly formed and distributed homogenously in the structure. A comprehensive magnetic study has been performed by measuring magnetic moment as a function of temperature and external magnetic field. The paramagnetic to ferromagnetic phase transition and non-collinear spiral magnetic transition have been observed in CoCr2O4 nanoparticles at 96 and 27 K, respectively. Interestingly, we observed field-condition shift in lock-in transition which is found as 16 and 8 K for FH and FC, respectively. The exchange bias effect is observed when the CoCr2O4 sample is cooled under magnetic field. The magnitude of exchange bias field decreases with increasing temperature from 5 to 50 K, and it is vanished above 50 K. In addition, we also worked on the magnetic entropy change around the paramagnetic to ferromagnetic phase transition. The magnetic entropy change is found as -0.87 J/kg K under 6 T magnetic field.
dc.description.sponsorshipCukurova University (Adana/Turkey) [FBA-2017-8082]
dc.description.sponsorshipThis work was partially supported by Cukurova University (Adana/Turkey) under the Project No. of FBA-2017-8082.
dc.identifier.doi10.1016/j.physb.2017.09.021
dc.identifier.endpage148
dc.identifier.issn0921-4526
dc.identifier.issn1873-2135
dc.identifier.scopus2-s2.0-85029396113
dc.identifier.scopusqualityQ2
dc.identifier.startpage144
dc.identifier.urihttps://doi.org/10.1016/j.physb.2017.09.021
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2785
dc.identifier.volume525
dc.identifier.wosWOS:000414178500024
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofPhysica B-Condensed Matter
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectNanoparticles
dc.subjectSpinel
dc.subjectCoCr2O4
dc.subjectExchange bias
dc.titleMagnetic field dependence of magnetic coupling in CoCr2O4 nanoparticles
dc.typeArticle

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