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    題名: Effect of Oxygen Concentration on Superconducting Properties of Rubidium Tungsten Bronzes RbxWOy
    作者: Ting, L.-C.;Hsieh, H.-H.;Kang, H.-H.;Ling, D.-C.;Liu, H.-L.;Pong, W.-F.;Chien, F.-Z.;Hor, P.-H.
    貢獻者: 淡江大學物理學系
    關鍵詞: rubidium tungsten bronzes;oxygen concentration;superconductivity
    日期: 2007-04
    上傳時間: 2011-10-24 10:36:07 (UTC+8)
    出版者: Kluwer Academic Publishers-Plenum Publishers
    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 Rb0.23WOy. No superconductivity enhanced region was observed for Rb0.27WOy. 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 Incorporating Novel Magnetism 20(3), pp.249-253
    DOI: 10.1007/s10948-006-0186-3
    顯示於類別:[物理學系暨研究所] 期刊論文

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