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题名: Instability of the Fermi surface in the one-dimensional Kondo lattice
作者: Su, YH ;  Xiao, QH ;  Xiang, T ;  Wang, XQ ;  Su, ZB
刊名: JOURNAL OF PHYSICS-CONDENSED MATTER
出版日期: 2004
卷号: 16, 期号:28, 页码:5163-5169
关键词: MATRIX RENORMALIZATION-GROUP ;  CORRELATION LENGTH ;  PHASE-DIAGRAM ;  HUBBARD-MODEL ;  GROUND-STATE ;  TEMPERATURE ;  CHAIN
学科分类: Physics
通讯作者: Su, YH , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
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
英文摘要: 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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000223017300038
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14043
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
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.
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