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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/72588

    Title: Effect of Oxygen Concentration on Superconducting Properties of Rubidium Tungsten Bronzes RbxWOy
    Authors: Ting, L.-C.;Hsieh, H.-H.;Kang, H.-H.;Ling, D.-C.;Liu, H.-L.;Pong, W.-F.;Chien, F.-Z.;Hor, P.-H.
    Contributors: 淡江大學物理學系
    Keywords: rubidium tungsten bronzes;oxygen concentration;superconductivity
    Date: 2007-04
    Issue Date: 2011-10-24 10:36:07 (UTC+8)
    Publisher: Kluwer Academic Publishers-Plenum Publishers
    Abstract: 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.
    Relation: Journal of Superconductivity and Incorporating Novel Magnetism 20(3), pp.249-253
    DOI: 10.1007/s10948-006-0186-3
    Appears in Collections:[Graduate Institute & Department of Physics] Journal Article

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