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    题名: Effect of Oxygen Concentration on Superconducting Properties of Rubidium Tungsten Bronzes RbxWOy
    作者: Ling, Dah-chin
    贡献者: 淡江大學物理學系
    关键词: rubidium tungsten bronzes;oxygen concentration;superconductivity
    日期: 2007-01-23
    上传时间: 2013-01-15 18:24:49 (UTC+8)
    出版者: New York: Springer New York LLC
    摘要: Superconducting transition temperature (T c) as a function of oxygen concentration for hexagonal rubidium tungsten bronzes Rb x WO y with 2.80 ≤ y ≤ 3.07 and x = 0.19, 0.23, and 0.27 has been systematically investigated. Three regions corresponding to T c < 2 K (denoted as superconductivity suppressed region), T c∼ 3 K (superconductivity uniform region) and T c > 3 K (superconductivity enhanced region) were identified in T c–y phase diagram for Rb0.19WO y and Rb0.23WO y . No superconductivity enhanced region was observed for Rb0.27WO y . The superconductivity suppressed region shifts toward higher oxygen content as rubidium concentration increases. The local ordering of the intercalated rubidium atoms might be responsible for the intriguing T c–y phase diagram of RbxWOy.
    關聯: Journal of Superconductivity and Novel Magnetism 20(3), p.249-253
    DOI: 10.1007/s10948-006-0186-3
    显示于类别:[物理學系暨研究所] 期刊論文

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