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Grain Size Reduction Effect on Structural and Magnetic Properties in La1-xSrxMnO3 (x = 0.3 y 0.4) by Mechanical Ball Milling

dc.creatorCampillo G.
dc.creatorOsorio J.
dc.creatorArnache O.
dc.creatorGil A.
dc.creatorBeltrán J.J.
dc.creatorDorkis L.
dc.date2019
dc.date.accessioned2020-04-29T14:54:06Z
dc.date.available2020-04-29T14:54:06Z
dc.identifier.issn17426588
dc.identifier.urihttp://hdl.handle.net/11407/5808
dc.descriptionWe have investigated the magnetic, structural and morphological properties of ferromagnetic phases of manganite La1-xSrxMnO3 with x = 0.3 (LSMO-30) and x = 0.4 (LSMO-40) prepared by solid state reaction method, and then subjected to mechanical ball milling at different times of 3, 6 and 12 h. All of the samples were characterized by X-ray diffraction (XRD) and magnetic measurements. From Rietveld analysis of XRD patterns it was found a reduction in crystallite average size (Dv) with increasing milling time, for both concentrations. For LSMO-30 sample a mix of two different crystallographic structures, an orthorhombic phase (Pnma), and another rhombohedral (R3C) were identified at 3 and 6 h, but for 12 h of milling the R3C structure was the only phase identified. In contrast, for LSMO-40 the R3C structure was discerned as the unique phase independent of milling time. For both samples, a low value of the saturation magnetization was obtained for the longer milling time (smaller Dv). This behaviour was attributed to surface effects that induce magnetically disordered states with decreasing of particle size. This magnetic anisotropy surface was also evidenced on Zeta potential values and the changes of coercive fields, which increased most drastically with the first hours of mechanical ball milling time. © Published under licence by IOP Publishing Ltd.
dc.language.isoeng
dc.publisherInstitute of Physics Publishing
dc.relation.isversionofhttps://www2.scopus.com/inward/record.uri?eid=2-s2.0-85072152738&doi=10.1088%2f1742-6596%2f1247%2f1%2f012015&partnerID=40&md5=79280132b76f7f7ca15bfec5a377793f
dc.sourceJournal of Physics: Conference Series
dc.subjectCrystallite size
dc.subjectEngineering research
dc.subjectLanthanum compounds
dc.subjectMagnetic anisotropy
dc.subjectManganese compounds
dc.subjectManganites
dc.subjectMilling (machining)
dc.subjectParticle size
dc.subjectParticle size analysis
dc.subjectRietveld analysis
dc.subjectSaturation magnetization
dc.subjectSilicon compounds
dc.subjectSolid state reactions
dc.subjectStrontium compounds
dc.subjectX ray diffraction
dc.subjectCrystallographic structure
dc.subjectFerromagnetic phasis
dc.subjectGrain-size reduction
dc.subjectMechanical ball milling
dc.subjectOrthorhombic phase
dc.subjectSolid state reaction method
dc.subjectStructural and magnetic properties
dc.subjectStructural and morphological properties
dc.subjectBall milling
dc.titleGrain Size Reduction Effect on Structural and Magnetic Properties in La1-xSrxMnO3 (x = 0.3 y 0.4) by Mechanical Ball Milling
dc.typeConference Papereng
dc.rights.accessrightsinfo:eu-repo/semantics/restrictedAccess
dc.publisher.programFacultad de Ciencias Básicas
dc.identifier.doi10.1088/1742-6596/1247/1/012015
dc.relation.citationvolume1247
dc.relation.citationissue1
dc.publisher.facultyFacultad de Ciencias Básicas
dc.affiliationCampillo, G., Facultad de Ciencias Básicas, Universidad de Medellin, Medellin, Colombia; Osorio, J., Grupo de Estado Sólido, Instituto de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Medellin, 52-21, Colombia; Arnache, O., Grupo de Estado Sólido, Instituto de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Medellin, 52-21, Colombia; Gil, A., Grupo de Estado Sólido, Instituto de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Medellin, 52-21, Colombia; Beltrán, J.J., Facultad de Ciencias Básicas, Departamento de Quimica, Universidad de Córdoba, Monteria, Colombia; Dorkis, L., Facultad de Minas, Universidad Nacional de Colombia-Sede Medellin, Medellin, Colombia
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dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.type.driverinfo:eu-repo/semantics/article


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