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题名: Phase structures of magnetic impurity models with two-body hybridization
作者: Yu, Y ;  Tan, WP
刊名: PHYSICAL REVIEW B
出版日期: 1998
卷号: 57, 期号:10, 页码:5879-5890
关键词: EXTENDED HUBBARD-MODEL ;  SINE-GORDON EQUATION ;  FERMI-LIQUID PHASES ;  KONDO PROBLEM ;  INFINITE DIMENSIONS ;  ANDERSON MODEL ;  SCALING THEORY ;  2 DIMENSIONS ;  SUPERCONDUCTIVITY ;  RENORMALIZATION
学科分类: Physics
通讯作者: Yu, Y , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: The most general model with a magnetic impurity coupled to hybridizing and screening channels of a conduction band is considered. The partition function of the system is asymptotically equivalent to that of the multicomponent kink plasma with a weak external field. The scaling properties of the models for finite U are sketched by using the Anderson-Yuval-Hamann-Cardy poor-man's scaling theory. We point out that it is proper to include a two-body hybridization in order to obtain correct renormalization flows. The phase structures are studied graphically for the general model and various reduced models. A Fermi-liquid-non-Fermi-liquid phase transition is found for all the models. We also show all possible phases with different finite-temperature behaviors though they have the same Fermi-liquid fixed point at low temperature. We also discuss the fixed-point behaviors in the mixed-valence-state regime.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000072486500050
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12348
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:
Yu, Y,Tan, WP. Phase structures of magnetic impurity models with two-body hybridization[J]. PHYSICAL REVIEW B,1998,57(10):5879-5890.
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