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Magnetic properties and morphology of manganese ferrite nanoparticles in glasses

hal.structure.identifierL.V. Kirensky Institute of Physics
dc.contributor.authorEDELMAN, I.
hal.structure.identifierL.V. Kirensky Institute of Physics
dc.contributor.authorIVANOVA, O.
hal.structure.identifierL.V. Kirensky Institute of Physics
dc.contributor.authorIVANTSOV, I.
hal.structure.identifierL.V. Kirensdy Institute of Physics
dc.contributor.authorVELIKANOV, D.
hal.structure.identifierL.V. Kirensky Institute of Physics
dc.contributor.authorPETRAKOVSKAJA, E.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorARTEMENKO, A.
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorCURELY, J.
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorKLIAVA, J.
hal.structure.identifierBoreskov Institute of Catalysis
dc.contributor.authorZAIKOVSKIY, V.
hal.structure.identifierS.I. Vavilov State Optical Institute
dc.contributor.authorSTEPANOV, S.
dc.date.issued2011-12
dc.date.conference2011-05-22
dc.description.abstractEnStatic magnetization (SM), magnetic circular dichroism (MCD) and electron magnetic resonance (EMR) studies are reported of borate glasses 22.5 K2O-22.5 Al2O3-55 B2O3 co-doped with iron and manganese oxides. In as-prepared glasses the paramagnetic ions usually are in diluted state; however, if the ratio of the iron and manganese oxides in the charge is 3/2, magnetic nanoparticles are found already in as-prepared glass. After additional thermal treatment all glasses show magnetic behaviour, MCD and EMR due to the presence of magnetic nanoparticles with characteristics close to those of manganese ferrite. By computer simulating the EMR spectra at variable temperatures, their morphological characteristics are deduced: relatively broad size and shape distribution with average diameter of ca. 3-4 nm. The characteristic temperature-dependent shift of the apparent resonance field is explained by a strong temperature dependence of the magnetocrystalline anisotropy in the nanoparticles. The potassium-alumina-borate glasses containing magnetic nanoparticles represent a novel class of materials: "transparent magnets". Indeed, they remain transparent in a part of visible and near infrared spectral range while showing magnetic and magneto-optical properties characteristic of magnetically ordered materials.
dc.language.isoen
dc.source.titleIOP Conference Series : Materials Science and Engineering
dc.title.enMagnetic properties and morphology of manganese ferrite nanoparticles in glasses
dc.typeCommunication dans un congrès
dc.identifier.doi10.1088/1757-899x/25/1/012017
dc.subject.halPhysique [physics]
dc.subject.halChimie/Matériaux
bordeaux.page012017 (9 p.)
bordeaux.volume25
bordeaux.issue1
bordeaux.countryLV
bordeaux.title.proceedingIOP Conference Series : Materials Science and Engineering
bordeaux.conference.cityRiga
bordeaux.peerReviewednon
hal.identifierhal-01555382
hal.version1
hal.invitednon
hal.proceedingsnon
hal.conference.end2011-05-25
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01555382v1
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