Induced magnetization and inhomogeneous superconductivity in presence of external magnetic field

淡江大學機構典藏 > 理學院 > 物理學系暨研究所 > 期刊論文 > Item 987654321/27732

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题名:	Induced magnetization and inhomogeneous superconductivity in presence of external magnetic field
作者:	楊棨;Yang, Chi;Kocharian, A. N.;Chiang, Y. L.
贡献者:	淡江大學物理學系
关键词:	Hubbard model;Phase diagram;Inhomogeneous superconductivity
日期:	2001-11-01
上传时间:	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
显示于类别:	[物理學系暨研究所] 期刊論文

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