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题名: EFFECTS OF THE FLUCTUATIONS ON THERMODYNAMIC PROPERTIES OF THE MIXED-VALENCE COMPOUNDS
作者: HU, LB ;  YANG, FM ;  LIN, TH
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 1995
卷号: 24, 期号:3, 页码:277-290
关键词: ANDERSON LATTICE
学科分类: Physics
通讯作者: HU, LB , YANTAI UNIV,DEPT PHYS,YANTAI 264005,PEOPLES R CHINA.
部门归属: ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA; BEIJING UNIV,DEPT PHYS,BEIJING 100871,PEOPLES R CHINA; CCAST,WORLD LAB,BEIJING 100080,PEOPLES R CHINA
英文摘要: Based on the SU(N-d) Anderson lattice model in the slave boson formalism, we study the effect of fluctuations around the saddle-point approximation on the thermodynamic properties for mixed valence lattice systems. The fluctuation component of slave boson held is explicitly introduced and its interactions with electrons are studied. By using the Green's function technique we obtain modified self-consistent equations of mean-field parameters and free energy. The fluctuation correction to the pseudophase transition temperature is obtained, and the validity of the mean-field approximation is examined. In the limit of low energy and small momentum transfer, a fluctuation correction to the specific heat proportional to T(3)lnT at low temperature is extracted. The chemical potential shift is also studied. In order to describe the thermodynamic properties correctly, it is important to determine the chemical potential shift properly.
收录类别: SCI
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12693
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:
HU, LB,YANG, FM,LIN, TH. EFFECTS OF THE FLUCTUATIONS ON THERMODYNAMIC PROPERTIES OF THE MIXED-VALENCE COMPOUNDS[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,1995,24(3):277-290.
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