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    题名: Incommensurate magnetic fluctuations in the underdoped Copper Oxide Materials
    作者: Feng, Yuan;Feng, Shi-ping;陳惟堯;Chen, Wei-yeu
    贡献者: 淡江大學物理學系
    日期: 2001-09-15
    上传时间: 2009-12-31 10:09:43 (UTC+8)
    出版者: Chinese Physical Society/Institute of Theoretical Physics.
    摘要: The doping dependence of magnetic fluctuations in the underdopcd copper oxide materials are studied within the t-J model. It is shown that away from the half-filling, the magnetic Bragg peaks from the dynamical spin structure factor spectrum S(k,ω) are incommensurate with the lattice. Although the incommensurability δ(cursive Greek chi) is almost energy-independent, the dynamical spin susceptibility χ″(k,ω) at the incommensurate wave vectors is changed dramatically with energies, which is consistent with the experiments.
    關聯: Communications in Theoretical Physics 36(3), pp.370- 374
    DOI: 10.1088/0253-6102/36/3/370
    显示于类别:[物理學系暨研究所] 期刊論文


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