Production and Magnetic Properties of Co- and La-Y-Doped Strontium Ferrite

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dc.contributor.authorErtug, B.
dc.date.accessioned2026-04-04T18:56:03Z
dc.date.available2026-04-04T18:56:03Z
dc.date.issued2024
dc.departmentİstanbul Bilgi Üniversitesi
dc.description13th All-Polish Seminar on Mossbauer Spectroscopy (OSSM) -- JUN 16-19, 2024 -- Zawiercie, POLAND
dc.description.abstractIn this study, rare earth-substituted M-type Sr-hexaferrites with the chemical compositions Sr1-x(RE)(x)Fe12-xCoxO19 and Sr1-2x(RE)(2x)Fe12-xCoxO19 were prepared using the solid-state reaction method. All of the hexaferrite samples were characterized using instrumental techniques of X-ray diffraction, optical microscopy, and vibrating sample magnetometer to study the effect of La-Y substitution on the structural and magnetic properties. The bulk densities changed from 4.45 to 4.96 g/cm(3) after sintering at 1250 degrees C. X-ray diffraction diagrams of all the sintered samples confirmed that the Sr-hexaferrite phase persisted with La/Y and Co co-substitution without secondary phases. However, the substitution affected the peak intensities and the positions of Bragg angles. The reduction in the saturation magnetization (M-s) was observed from 25.4 emu/g for single La to 9.40 emu/g for La-Y substitution. It was found that the coercivity (H-c) improved from 502 to 2080 Oe for a single Y-substituted sample and a single La-substituted sample, respectively. The measured squareness ratio (M-r/M-s) was larger than 0.5, indicating that the change in the magnetization can be realized by the rotation. The results suggest that the incorporation of rare-earth cations can improve the magnetic properties of strontium hexaferrites.
dc.description.sponsorshipUniv Silesia,Fac Science & Tech,Fac Natural Science
dc.identifier.doi10.12693/APhysPolA.146.279
dc.identifier.doi10.12693/APhysPolA.146.279
dc.identifier.issn0587-4246
dc.identifier.issn1898-794X
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85208824361
dc.identifier.scopusqualityQ4
dc.identifier.urihttps://doi.org/10.12693/APhysPolA.146.279
dc.identifier.urihttps://hdl.handle.net/11411/10654
dc.identifier.volume146
dc.identifier.wosWOS:001406534500011
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPolish Acad Sciences Inst Physics
dc.relation.ispartofActa Physica Polonica A
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20260402
dc.snmzKA_Scopus_20260402
dc.subjectStrontium Hexaferrite
dc.subjectFerrimagnetic
dc.subjectDoping
dc.subjectRare Earth
dc.titleProduction and Magnetic Properties of Co- and La-Y-Doped Strontium Ferrite
dc.typeConference Object

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