董闯

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教授

博士生导师

硕士生导师

性别:男

毕业院校:法国洛林国立综合理工学院

学位:博士

所在单位:材料科学与工程学院

电子邮箱:dong@dlut.edu.cn

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Cluster spin-glass state and Kondo behavior in Sm-based bulk metallic glasses

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论文类型:期刊论文

发表时间:2009-04-01

发表刊物:53rd Annual Conference on Magnetism and Magnetic Materials

收录刊物:SCIE、EI、CPCI-S

卷号:105

期号:7

ISSN号:0021-8979

摘要:We investigate the magnetization and electrical transport properties of Sm-based ternary magnetic bulk metallic glasses at low temperatures. A cluster spin-glass phase is evidenced below T-f similar to 25 K, which is probably ascribed to competition among the multifold magnetic interactions and intrinsic structural inhomogeneity, and further demonstrated by the magnetic hysteresis under field-cooling conditions. It is shown that the short-range magnetic clusters play as scattering centers for conductive electrons and result in a Kondo-like transport behavior in highly spin disordered Sm50Al25Co25 at low temperature. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3073829]