Title :
Variation of transport property in magnetoresistive polycrystalline La0.7-xLnxPb0.3MnO3 (Ln = Pr, Nd, Gd, Dy, Sm and Y)
Author_Institution :
Dept. of Electr. Eng., Hsiuping Inst. of Technol., Taichung, Taiwan
Abstract :
The property of the manganite oxides, La0.7-xLnxPb0.3MnO3 (Ln = Pr, Nd, Gd, Dy, Sm and Y) was investigated. The magnetization behavior of Nd, Pr systems is dissimilar to Gd, Dy system and Sm, Y system. Double peak of resistivity vs temperature curve for Dy and Y system have been observed which may be induced by the grain boundary effect. However, the TP and TC decrease as the substitution content increase for all systems.
Keywords :
colossal magnetoresistance; dysprosium compounds; ferromagnetic materials; gadolinium compounds; grain boundaries; lanthanum compounds; lead compounds; magnetisation; neodymium compounds; praseodymium compounds; samarium compounds; yttrium compounds; La0.7-xDyxPb0.3MnO3; La0.7-xGdxPb0.3MnO3; La0.7-xNdxPb0.3MnO3; La0.7-xPrxPb0.3MnO3; La0.7-xSmxPb0.3MnO3; La0.7-xYxPb0.3MnO3; grain boundary effect; magnetization; magnetoresistance; manganite oxides; transport property; Cities and towns; Conductivity; Grain boundaries; Magnetic properties; Magnetoresistance; Manganese; Neodymium; Samarium; Saturation magnetization; Temperature dependence;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1464164