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    题名: Magnetic properties in CeCo2 nanoparticles
    作者: Wang, C. R.;Chen, Y. Y.;Yao, Y. D.;張經霖;Chang, C. L.;Weng, Y. S.;Wang, C. Y.
    贡献者: 淡江大學物理學系
    关键词: Superparamagnetism;Paramagnetism;Spin glass;Nanoparticle
    日期: 2002-02-01
    上传时间: 2009-12-31 10:27:50 (UTC+8)
    出版者: Elsevier
    摘要: Bulk CeCo2 is characterized as a Pauli paramagnet, both Ce and Co are essentially nonmagnetic. The data of χ(T) show that CeCo2 nanoparticles exhibit extremely complex magnetic properties. Two magnetic phases, a major paramagnetic component and a minor ferromagnetic component, were detected in CeCo2 nanoparticles. A superparamagnetic behavior was shown at T>200 K and a low-temperature spin-glass-like behavior was observed at T=10–30 K. Such magnetic changes were attributed to the size effects in nanoparticles.
    關聯: Journal of Magnetism and Magnetic Materials 239(1-3), pp.524-526
    DOI: 10.1016/S0304-8853(01)00639-4
    显示于类别:[物理學系暨研究所] 期刊論文


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