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- W1993224511 abstract "A wet-chemistry technique, namely the citrate route, has been used to prepare high-quality polycrystalline samples of double perovskite Sr{sub 2}FeMoO{sub 6}. We report on the evolution of magnetic and magnetoresistive properties of the synthesized samples as a function of three parameters (i) the pH of the starting solution, (ii) the decomposition temperature of the citrate precursors and (iii) the sintering conditions. The low-field magnetoresistance (LFMR) value of our best samples is as high as 5% at room temperature for an applied magnetic field of 1 kOe. Additionally, the distinguishing feature of these samples is the persistence of LFMR, with a reasonably large value, up to 400 K which is a crucial parameter for any practical application. Our study indicates that the enhancement of LFMR observed is due to a good compromise between the grain size distribution and their magnetic polarization. -- Graphical abstract: The microstructure (left panel) and corresponding low-field magnetoresistance of one of the Sr{sub 2}FeMoO{sub 6} samples synthesized in the course of this work. Highlights: • Samples of Sr{sub 2}FeMoO{sub 6} are prepared using a citrate route under varying conditions. • Magnetoresistive properties are improved and optimized. • Low-field magnetoresitence values as large as 5% at 300 K/1more » kOe are reported. • Persistence of low-field magnetoresistance up to 400 K.« less" @default.
- W1993224511 created "2016-06-24" @default.
- W1993224511 creator A5024615170 @default.
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- W1993224511 date "2014-03-01" @default.
- W1993224511 modified "2023-10-18" @default.
- W1993224511 title "Low-field magnetoresistance up to 400K in double perovskite Sr2FeMoO6 synthesized by a citrate route" @default.
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- W1993224511 doi "https://doi.org/10.1016/j.jssc.2014.01.001" @default.
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