Lattice Effects in La-Sm-Ca-Mn-O
来源期刊：JOURNAL OF RARE EARTHS2003年第2期
论文作者：刘宜华 梅良模 张汝贞 栾开政 岳龙强 王成建
Key words：manganites; CMR effect; lattice effect; rare earths;
Abstract: The doping effects of Sm in La0.67Ca0.33MnO3 oxide were studied. The results show that with increasing the doping amount of Sm the phase transition temperature of metal-insulator for the materials decreases monotonically, the corresponding peak resistance increases rapidly, the Curie temperature decreases monotonically, and the magneto-resistance ratio increases quickly. The effects of Sm doping can be explained in terms of lattice effects.
刘宜华1，梅良模1，张汝贞1，栾开政1，岳龙强1，王成建1
(1.Department of Physics, Shandong University, Jinan 250100, China)
Abstract:The doping effects of Sm in La0.67Ca0.33MnO3 oxide were studied. The results show that with increasing the doping amount of Sm the phase transition temperature of metal-insulator for the materials decreases monotonically, the corresponding peak resistance increases rapidly, the Curie temperature decreases monotonically, and the magneto-resistance ratio increases quickly. The effects of Sm doping can be explained in terms of lattice effects.
Key words:manganites; CMR effect; lattice effect; rare earths;
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