Sol-gel auto-combustion synthesis of PVP/CoFe2O4 nanocomposite and its magnetic characterization

Basit Öğe Kaydı
dc.contributor.authorKurtan, U.
dc.contributor.authorTopkaya, R.
dc.contributor.authorBaykal, A.
dc.date.accessioned2025-10-29T11:24:32Z
dc.date.issued2013
dc.departmentFakülteler, Temel Bilimler Fakültesi, Kimya Bölümü
dc.departmentFakülteler, Temel Bilimler Fakültesi, Fizik Bölümü
dc.description.abstractPoly(vinyl pyrrolidone)/CoFe2O4 nanocomposite has been fabricated by a sol-gel auto-combustion method. Poly(vinyl pyrrolidone) was used as a reducing agent as well as a surface capping agent to prevent particle aggregation and stabilize the particles. The average crystallite size estimated from X-ray line profile fitting was found to be 20 +/- 7 nm. The high field irreversibility and unsaturated magnetization behaviours indicate the presence of the core-shell structure in the sample. The exchange bias effect observed at 10 K suggests the existence of the magnetically aligned core surrounded by spin-disordered surface layer. The reduced remanent magnetization value of 0.6 at 10 K (higher than the theoretical value of 0.5) shows the PVP/CoFe2O4 nanocomposite to have cubic magnetocrystalline anisotropy according to the Stoner-Wohlfarth model. (C) 2013 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipFatih University under BAP grant [P50021104-B]
dc.description.sponsorshipState Planning Organization of Turkey [2009K120730]
dc.description.sponsorshipThis work is supported by Fatih University under BAP grant no. P50021104-B and the State Planning Organization of Turkey (DPT-Project No. 2009K120730).
dc.identifier.doi10.1016/j.materresbull.2013.07.018
dc.identifier.endpage4895
dc.identifier.issn0025-5408
dc.identifier.issn1873-4227
dc.identifier.issue11
dc.identifier.orcid0000-0002-1279-7729
dc.identifier.orcid0000-0003-3105-0425
dc.identifier.orcid0000-0002-5205-0937
dc.identifier.scopus2-s2.0-84893701678
dc.identifier.scopusqualityQ1
dc.identifier.startpage4889
dc.identifier.urihttps://doi.org/10.1016/j.materresbull.2013.07.018
dc.identifier.urihttps://hdl.handle.net/20.500.14854/9985
dc.identifier.volume48
dc.identifier.wosWOS:000326901400074
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofMaterials Research Bulletin
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20251020
dc.subjectComposites
dc.subjectMagnetic materials
dc.subjectSol-gel chemistry
dc.subjectX-ray diffraction
dc.subjectMagnetic properties
dc.titleSol-gel auto-combustion synthesis of PVP/CoFe2O4 nanocomposite and its magnetic characterization
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu
Temel Bilimler Fakültesi Koleksiyonu