淡江大學機構典藏:Item 987654321/79942
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    题名: Magnetism and Superconductivity in Sr2A(Ru1-xCux)O6 (A=Y, Ho) System
    作者: Wu, M. K.;Chen, D. Y.;Ling, D. C.;Chien, F. Z.
    贡献者: 淡江大學物理學系
    关键词: Canting magnetic order;Double exchange;Double perovskite;μSR;Neutron diffraction;Ru-based double perovskite oxide
    日期: 2000-07
    上传时间: 2013-01-15 18:32:07 (UTC+8)
    出版者: Elsevier B.V.
    摘要: We have synthesized a series of Cu-doping Sr2A(Ru1−xCux)O6 compounds, where A=Y or Ho. We observed superconducting transition in samples with x>0.04. In addition, magnetic orders at a temperature close to that of the superconducting transition, are present in the samples. There is an additional magnetic order at about in Ho samples. Detailed magnetic measurements suggest that this transition is ferromagnetic in nature, presumably due to Ho order. The observed striking features can be understood in terms of a model based on the double exchange mechanism, which occurs via Ru5+ spin coupling to itinerant electrons hopping between Ru-site.
    關聯: Physica B: Condensed Matter 284-288 pt.1, pp.477-478
    DOI: 10.1016/S0921-4526(99)02045-1
    显示于类别:[物理學系暨研究所] 期刊論文

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