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    题名: Off-diagonal superconducting correlations and nagaoka instability in the repulsive Hubbard model
    其它题名: 在哈巴特排斥模型中之超導關聯
    作者: Kocharian, A. N.;Jermakian, A. K.;楊棨;Yang, Chi
    贡献者: 淡江大學物理學系
    关键词: Superconductivity;Nagaoka instability;Hubbard model
    日期: 1997-02-01
    上传时间: 2009-12-31 10:39:22 (UTC+8)
    出版者: Elsevier
    摘要: The finite Hubbard lattice with strong repulsion away from half-filling in a strong magnetic field is considered. The exact ground state energies and density-density correlation function for electrons in the high-spin limit with one spin-flip state (Nagaoka instability) is calculated for an arbitrary number of electrons and lattice sites in periodic hypercubes in one, two and three dimensions. The criteria for stability of either the spin-flipped phase or saturated Nagaoka state at large U and finite doping are derived.
    關聯: Physica B: Condensed Matter 230-232, pp.466-468
    DOI: 10.1016/S0921-4526(96)00616-3
    显示于类别:[物理學系暨研究所] 期刊論文

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