ITP OpenIR  > 理论物理所科研产出  > SCI论文
Liu, Y; Li, H; Zhang, GM; Yu, L; Liu, Y (reprint author), Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China.
d-wave superconductivity induced by short-range antiferromagnetic correlations in the two-dimensional Kondo lattice model
Source PublicationPHYSICAL REVIEW B
Language英语
KeywordQuantum Phase-transitions Fermi-liquid Spin Liquid Heavy Electron Instability Expansion Systems Diagram Metals
AbstractThe possible heavy fermion superconductivity is carefully reexamined in the two-dimensional Kondo lattice model with an antiferromagnetic Heisenberg superexchange between local magnetic moments. To establish an effective mean field theory in the limit of paramagnetic heavy Fermi liquid and near the half-filling case, we find that the spinon singlet pairing from the local antiferromagnetic short-range correlations can reduce the ground state energy substantially. In the presence of the Kondo screening effect, the Cooper pairs between the conduction electrons are induced. Depending on the ratio of the Heisenberg and the Kondo exchange couplings, the resulting superconducting state is characterized by either a d-wave nodal or d-wave nodeless state, and a continuous phase transition exists between these two states. These results are related to some quasi-two-dimensional heavy fermion superconductors.
2012
ISSN1098-0121
Volume86Issue:2Pages:24526
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNSF of China; National Program for Basic Research of MOST-China ; NSF of China; National Program for Basic Research of MOST-China ; NSF of China; National Program for Basic Research of MOST-China ; NSF of China; National Program for Basic Research of MOST-China
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15057
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLiu, Y (reprint author), Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China.
Recommended Citation
GB/T 7714
Liu, Y,Li, H,Zhang, GM,et al. d-wave superconductivity induced by short-range antiferromagnetic correlations in the two-dimensional Kondo lattice model[J]. PHYSICAL REVIEW B,2012,86(2):24526.
APA Liu, Y,Li, H,Zhang, GM,Yu, L,&Liu, Y .(2012).d-wave superconductivity induced by short-range antiferromagnetic correlations in the two-dimensional Kondo lattice model.PHYSICAL REVIEW B,86(2),24526.
MLA Liu, Y,et al."d-wave superconductivity induced by short-range antiferromagnetic correlations in the two-dimensional Kondo lattice model".PHYSICAL REVIEW B 86.2(2012):24526.
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