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题名: Structural and Magnetic Properties in La0.7Pb0.3Mn1-xCoxO3 Systems
作者: Young, S. L.;Chen, Y. C.;Horng, Lance;Wu, T. C.;Chen, H. Z.;Shi, J. B.
贡献者: 物理學系
关键词: Single-phase;Rhombohedral distorted perovskite;Lattice;Magnetoresistance
日期: 2000-02
上传时间: 2013-02-05T02:18:06Z
出版者: Elsevier
摘要: In this study we present the results of an extensive structural investigation of the La0.7Pb0.3Mn1−XCoXO3 (0≦x≦1) system. Powder X-ray diffraction shows a single-phase rhombohedral distorted perovskite structure for all samples. There is a gradual decrease in the lattice parameter as the Co content increases. In addition, we have systematically investigated the magnetic properties by using a SQUID magnetometer. The magnetoresistances are also measured and a giant negative magnetoresistance of over 50% can be obtained.
關聯: Journal of Magnetism and Magnetic Materials, 209(1-3): 145-147
显示于类别:[物理學系] 期刊論文


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