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    題名: 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.
    貢獻者: 淡江大學物理學系
    關鍵詞: Canting magnetic order;Double exchange;Double perovskite;μSR;Neutron diffraction;Ru-based double perovskite oxide
    日期: 2000-07
    上傳時間: 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
    顯示於類別:[物理學系暨研究所] 期刊論文

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