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Instability of the Fermi surface in the one-dimensional Kondo lattice
Su, YH; Xiao, QH; Xiang, T; Wang, XQ; Su, ZB; Su, YH , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
2004
发表期刊JOURNAL OF PHYSICS-CONDENSED MATTER
ISSN0953-8984
卷号16期号:28页码:5163-5169
摘要The key parameters that characterize the long wavelength behaviour of correlation functions, including the Fermi momenta and the correlation length, are calculated using the transfer matrix renormalization group for the one-dimensional Kondo lattice model. The Fermi momentum varies slowly at high temperatures, but changes sharply at low temperatures in association with the formation of the Kondo singlets. By comparison with the temperature dependence of the conduction electron density, we find that the long wavelength correlations of conduction electrons are strongly affected by the localized spins at low temperatures. At high temperatures, the conduction electrons behave as for a system with a small Fermi surface. However, at low temperatures, the Fermi momentum of the conduction electrons is altered by the coupling with the localized spins.
部门归属Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Ctr Theoret Studies, Beijing 100080, Peoples R China; Peking Univ, Dept Phys, Beijing 100871, Peoples R China
关键词Matrix Renormalization-group Correlation Length Phase-diagram Hubbard-model Ground-state Temperature Chain
学科领域Physics
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收录类别SCI
WOS记录号WOS:000223017300038
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/14043
专题理论物理所1978-2010年知识产出
通讯作者Su, YH , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
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GB/T 7714
Su, YH,Xiao, QH,Xiang, T,et al. Instability of the Fermi surface in the one-dimensional Kondo lattice[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2004,16(28):5163-5169.
APA Su, YH,Xiao, QH,Xiang, T,Wang, XQ,Su, ZB,&Su, YH , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China..(2004).Instability of the Fermi surface in the one-dimensional Kondo lattice.JOURNAL OF PHYSICS-CONDENSED MATTER,16(28),5163-5169.
MLA Su, YH,et al."Instability of the Fermi surface in the one-dimensional Kondo lattice".JOURNAL OF PHYSICS-CONDENSED MATTER 16.28(2004):5163-5169.
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