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    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27732

    題名: Induced magnetization and inhomogeneous superconductivity in presence of external magnetic field
    作者: 楊棨;Yang, Chi;Kocharian, A. N.;Chiang, Y. L.
    貢獻者: 淡江大學物理學系
    關鍵詞: Hubbard model;Phase diagram;Inhomogeneous superconductivity
    日期: 2001-11-01
    上傳時間: 2009-12-31 10:40:36 (UTC+8)
    出版者: Elsevier
    摘要: Thermodynamic characteristics of the one-dimensional attractive Hubbard model are calculated by means of the generalized self-consistent field (GSCF) approach for a wide range of interaction strength U⩽0, in the presence of external magnetic field h⩾0, temperature T⩾0 and electron concentration 0⩽n⩽1. The GSCF theory shows a sharp transition driven by h>0 and T from the uniform superconducting state into a spatially inhomogeneous state in which the order parameter Full-size image (<1 K) has wave vector (Full-size image (<1 K)). The concentration of double occupied sites and the bound electron pairs with opposite spins npair are calculated and we found a simple relationship between the order parameters Full-size image (<1 K) and average spin s, valid for the arbitrary U, all n and h.
    關聯: Physica C: superconductivity 364-365, pp.155-157
    DOI: 10.1016/S0921-4534(01)00742-0
    顯示於類別:[物理學系暨研究所] 期刊論文


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