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Electrical and magneto-transport properties of magneto-resistive La 0.7Ca 0.28Sr 0.2MnO 3 prepared at different sintering temperature

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dc.citedby3
dc.contributor.authorEwe L.S.en_US
dc.contributor.authorRamli R.en_US
dc.contributor.authorLim K.P.en_US
dc.contributor.authorAbd-Shukor R.en_US
dc.contributor.authorid58032789200en_US
dc.contributor.authorid57195320409en_US
dc.contributor.authorid24776093100en_US
dc.contributor.authorid7004750914en_US
dc.date.accessioned2023-12-28T06:30:26Z
dc.date.available2023-12-28T06:30:26Z
dc.date.issued2012
dc.description.abstractThe effects of strontium doping on the electrical and magneto-transport properties of magneto resistive La 0.7Ca 0.28Sr0.02MnO 3 at different sintering temperatures have been studied. The samples were prepared by the co-precipitation technique (COP) and sintered at 1120, 1220 and 1320 oC. XRD patterns revealed that the samples have an orthorhombic structure and the diffraction patterns can be indexed with the Pbnm space group. The insulator metal transition, TIM increased linearly from 261 K to 272 K with the increase in sintering temperature. The magnetoresistance (MR) measurements were made in magnetic fields from 0.1 to 1 T at room temperature. The percentage of MR increased with increasing of magnetic field and sintering temperature for all samples. The electrical resistivity data were fitted with several equations in the metallic (ferromagnetic) and insulator (paramagnetic) regime. The density of states at the Fermi level N(EF) and the activation energy (Ea) of electron hopping were estimated by using variable range hopping and small polaron hopping model. Copyright Reserved � 2007 Sains Malaysiana.en_US
dc.description.natureFinalen_US
dc.identifier.epage768
dc.identifier.issue6
dc.identifier.scopus2-s2.0-84862741255
dc.identifier.spage761
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84862741255&partnerID=40&md5=2c2c68e332a0a1bc212499ec5f0bcf77
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/29538
dc.identifier.volume41
dc.pagecount7
dc.sourceScopus
dc.sourcetitleSains Malaysiana
dc.subjectActivation energy
dc.subjectElectrical resistivity
dc.subjectMagnetotransport
dc.subjectManganites
dc.subjectactivation energy
dc.subjectelectrical property
dc.subjectelectrical resistivity
dc.subjectmagnetic field
dc.subjectstrontium
dc.subjecttemperature
dc.subjectX-ray diffraction
dc.titleElectrical and magneto-transport properties of magneto-resistive La 0.7Ca 0.28Sr 0.2MnO 3 prepared at different sintering temperatureen_US
dc.typeArticleen_US
dspace.entity.typePublication
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