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    题名: Charge transport of electron-doped Mott insulators on a triangular lattice
    作者: Liu, Bin;Liang, Ying;Feng, Shiping;Chen, Wei Yeu
    贡献者: 淡江大學物理學系
    关键词: cobalt complex;metal oxide;sodium ion;water;conductance;electric resistance;electron;energy;mathematical analysis;superconductor;temperature
    日期: 2004-06
    上传时间: 2013-07-09 15:19:18 (UTC+8)
    出版者: College Park: American Physical Society
    摘要: The charge transport of electron-doped Mott insulators on a triangular lattice is investigated within the t-J model. The conductivity spectrum shows a low-energy peak and an unusual midinfrared band, while the resistivity is characterized by a crossover from the high temperature metalliclike behavior to low temperature insulatinglike behavior, in qualitative agreement with experiments. Our results also show that the mechanism that causes this unusual charge transport is closely related to a competition between the kinetic energy and the magnetic energy in the system.
    關聯: Physical Review B (Condensed Matter and Materials Physics) 69(22), 224506(5pages)
    DOI: 10.1103/PhysRevB.69.224506
    显示于类别:[物理學系暨研究所] 期刊論文


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