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Enhanced magnetoresistance in Sr2FeMoO6 by combustion synthesis

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Show simple item record Venkatesan, Munuswamy Varadaraju, Upadhyayula V. Douvalis, Alexios P. Fitzgerald, Ciara B. Rhen, Fernando M.F. Coey, John Michael David 2010-09-13T12:27:09Z 2010-09-13T12:27:09Z 2002
dc.description peer-reviewed en_US
dc.description.abstract A novel method of producing magnetoresistive oxides is described, which involves low temperature combustion synthesis from a mixture of nitrates and fuel, as applied to Sr2FeMoO6. The method yields ceramics with a fine crystallite size of 100–200 nm and a room temperature resistivity of 200 mV m. Low field magnetoresistance (6.5% in 0.1 T) is enhanced dramatically compared to samples prepared by conventional solid-state reaction due to the efficient intergrain tunnelling arising from the high density of grain boundaries. Magnetoresistance in low fields is essentially independent of temperature from 5–300 K, and it persists up to 350 K, providing the prospect of sensor applications in an extended temperature range. en_US
dc.language.iso eng en_US
dc.publisher Royal Society of Chemistry en_US
dc.relation.ispartofseries Journal of Materials Chemistry;12/ pp. 2184–2186
dc.subject magnetoresistive oxides en_US
dc.title Enhanced magnetoresistance in Sr2FeMoO6 by combustion synthesis en_US
dc.type Journal article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.type.restriction none en
dc.contributor.sponsor Advanced Magnetic Oxides for Responsive Engineering project

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