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Phase structures of magnetic impurity models with two-body hybridization
Yu, Y; Tan, WP; Yu, Y , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
1998
发表期刊PHYSICAL REVIEW B
ISSN0163-1829
卷号57期号:10页码:5879-5890
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.
部门归属Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Extended Hubbard-model Sine-gordon Equation Fermi-liquid Phases Kondo Problem Infinite Dimensions Anderson Model Scaling Theory 2 Dimensions Superconductivity Renormalization
学科领域Physics
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收录类别SCI
WOS记录号WOS:000072486500050
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12348
专题理论物理所1978-2010年知识产出
通讯作者Yu, Y , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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GB/T 7714
Yu, Y,Tan, WP,Yu, Y , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.. Phase structures of magnetic impurity models with two-body hybridization[J]. PHYSICAL REVIEW B,1998,57(10):5879-5890.
APA Yu, Y,Tan, WP,&Yu, Y , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(1998).Phase structures of magnetic impurity models with two-body hybridization.PHYSICAL REVIEW B,57(10),5879-5890.
MLA Yu, Y,et al."Phase structures of magnetic impurity models with two-body hybridization".PHYSICAL REVIEW B 57.10(1998):5879-5890.
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