English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 55176/89442 (62%)
造访人次 : 10657622      在线人数 : 29
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻

    jsp.display-item.identifier=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/987654321/27505

    题名: Thermodynamic properties of one-dimensional Hubbard model at finite temperatures
    作者: 楊棨;Yang, C.;Kocharian A. N.;Chiang, Y. L.
    贡献者: 淡江大學物理學系
    日期: 2003-08-10
    上传时间: 2009-12-31 10:13:09 (UTC+8)
    出版者: World Scientific Publishing
    摘要: The phase diagram and thermodynamic properties of the Hubbard model in one dimension are calculated numerically within the generalized self-consistent approach over a wide range of temperature T, magnetic field h, interaction strength U/t and electron concentration n. The temperature variation of the transverse magnetization, double occupied sites and chemical potential at various n, U/t and h is also analyzed. The wave vector q for the magnetic order parameter in the vicinity of the half-filling in the metallic phase shows a crossover from incommensurate magnetic phase (0<q<π) into the state with strong antiferromagnetic correlations (q=π) as temperature is increased. Overall our numerical results in the approximate theory at finite temperatures are in good quantitative and qualitative agreement with the Bethe-ansatz results.
    關聯: International Journal of Modern Physics B 17(18-20), pp.3354-3358
    DOI: 10.1142/S0217979203020971
    显示于类别:[物理學系暨研究所] 期刊論文


    档案 大小格式浏览次数



    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回馈