Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0921-4526(03)00124-8
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dc.titleGrain boundary effects on the magneto-transport properties of Sr2FeMoO6 induced by variation of the ambient H2-Ar mixture ratio during annealing
dc.contributor.authorYuan, C.L.
dc.contributor.authorZhu, Y.
dc.contributor.authorOng, P.P.
dc.contributor.authorOng, C.K.
dc.contributor.authorYu, T.
dc.contributor.authorShen, Z.X.
dc.date.accessioned2014-10-16T09:26:53Z
dc.date.available2014-10-16T09:26:53Z
dc.date.issued2003-07
dc.identifier.citationYuan, C.L., Zhu, Y., Ong, P.P., Ong, C.K., Yu, T., Shen, Z.X. (2003-07). Grain boundary effects on the magneto-transport properties of Sr2FeMoO6 induced by variation of the ambient H2-Ar mixture ratio during annealing. Physica B: Condensed Matter 334 (3-4) : 408-412. ScholarBank@NUS Repository. https://doi.org/10.1016/S0921-4526(03)00124-8
dc.identifier.issn09214526
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/96733
dc.description.abstractUsing the sol-gel method, polycrystalline double perovskites Sr2FeMoO6 with nanometer-scale grain size have been synthesized in the ambience of a controlled stream of different gaseous H2-Ar mixtures during annealing. X-ray diffraction (XRD) results indicated that with an increasing proportion of H2, the component of the SrMoO4 impurity present in the crystallites first decreased, but then increased again with further increase of the H2 proportion. The XRD results were further supported by independent sample analysis using Raman spectroscopy. Systematic investigation of the transport properties of the samples indicated that the SrMoO4 impurity at the grain boundary played a key role in determining the measured resistance and magnetoresistance of Sr2FeMoO6. This impurity effect was found to be correlated to the variation of the mixture ratio of the ambient H2-Ar gas stream surrounding the sample during annealing. © 2003 Elsevier Science B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/S0921-4526(03)00124-8
dc.sourceScopus
dc.subjectDouble perovskites
dc.subjectGrain boundaries
dc.subjectMagnetoresistance
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.contributor.departmentMATERIALS SCIENCE
dc.description.doi10.1016/S0921-4526(03)00124-8
dc.description.sourcetitlePhysica B: Condensed Matter
dc.description.volume334
dc.description.issue3-4
dc.description.page408-412
dc.description.codenPHYBE
dc.identifier.isiut000183689500027
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