Effect of different synthesis techniques on structural, magnetic and magneto-transport properties of Pr0.7Sr0.3MnO3 manganite
来源期刊：JOURNAL OF RARE EARTHS2010年第5期
论文作者：Umesh Chand Kamlesh Yadav Varma G D
文章页码：760 - 764
摘 要：We investigated the effect of different synthesis techniques on the structural, magnetic and magneto-transport properties of Pr0.7Sr0.3MnO3 （PSMO） samples. The samples were synthesized by three different techniques: solid state reaction, sol-gel and chemical Co-precipitation method. XRD studies confirmed the single phase formation of PSMO by all three techniques. It was also found that the magnetotransport properties of PSMO strongly depended on the synthesis techniques. A substantial decrease in the insulator-metal transition temperature （TIM） and an enhancement in resistivity were observed in the samples synthesized through co-precipitation method as compared to solid state and sol-gel synthesized samples. Furthermore, a reduction in magnetization and a decrease in paramagnetic-ferromagnetic （PM-FM） transition temperatures （TC） were also noticed in co-precipitation method synthesized sample. In all three studied techniques, the sample synthesized by co-precipitation method exhibited the highest magnetoresistance （～63%）.
Umesh Chand1，Kamlesh Yadav1，Varma G D1
1. Department of Physics, Indian Institute of Technology
摘 要：We investigated the effect of different synthesis techniques on the structural, magnetic and magneto-transport properties of Pr0.7Sr0.3MnO3 （PSMO） samples. The samples were synthesized by three different techniques: solid state reaction, sol-gel and chemical Co-precipitation method. XRD studies confirmed the single phase formation of PSMO by all three techniques. It was also found that the magnetotransport properties of PSMO strongly depended on the synthesis techniques. A substantial decrease in the insulator-metal transition temperature （TIM） and an enhancement in resistivity were observed in the samples synthesized through co-precipitation method as compared to solid state and sol-gel synthesized samples. Furthermore, a reduction in magnetization and a decrease in paramagnetic-ferromagnetic （PM-FM） transition temperatures （TC） were also noticed in co-precipitation method synthesized sample. In all three studied techniques, the sample synthesized by co-precipitation method exhibited the highest magnetoresistance （～63%）.
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