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题名: Lifshitz transitions in a heavy Fermi liquid driven by short-range antiferromagnetic correlations in the two-dimensional Kondo lattice model
作者: Zhang, GM ;  Su, YH ;  Yu, L
刊名: PHYSICAL REVIEW B
出版日期: 2011
卷号: 83, 期号:3, 页码:33102
关键词: QUANTUM PHASE-TRANSITIONS ;  ELECTRON ;  DIAGRAM ;  METALS
学科分类: Physics
通讯作者: Zhang, GM (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
部门归属: [Zhang, Guang-Ming] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China; [Su, Yue-Hua] Yantai Univ, Dept Phys, Yantai 264005, Peoples R China; [Yu, Lu] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China; [Yu, Lu] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: The heavy Fermi liquid with short-range antiferromagnetic correlations is carefully considered in the two-dimensional Kondo-Heisenberg lattice model. As the ratio of the local Heisenberg superexchange J(H) to the Kondo coupling J(K) increases, the topology of the Fermi surface (FS) of the heavy quasiparticles changes: at J(H)/J(K) = 0.1055 a first-order quantum phase transition is identified, where a small FS circle begins to emerge within the large deformed FS circle centered at (pi,pi). When J(H)/J(K) = 0.1425, the two deformed FS circles intersect each other and then decompose into four kidneylike Fermi pockets via a second-order quantum phase transition. As J(H)/J(K) increases further, the Fermi pockets are shifted inward along the direction (pi,pi) to (pi/2,pi/2), and the resulting FS is consistent with that obtained recently using the cluster dynamic mean-field approach to the Kondo lattice model in the presence of the antiferromagnetic order.
资助者: NSF of China; MOST-China
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000286765400001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14437
Appears in Collections:理论物理所2011年知识产出_期刊论文

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Recommended Citation:
Zhang, GM,Su, YH,Yu, L. Lifshitz transitions in a heavy Fermi liquid driven by short-range antiferromagnetic correlations in the two-dimensional Kondo lattice model[J]. PHYSICAL REVIEW B,2011,83(3):33102.
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