ITP OpenIR  > 2012年知识产出
d-wave superconductivity induced by short-range antiferromagnetic correlations in the two-dimensional Kondo lattice model
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.
2012
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号86期号:2页码:24526
摘要The 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.
部门归属[Liu, Yu; Li, Huan; Zhang, Guang-Ming] Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China; [Liu, Yu; Li, Huan; Zhang, Guang-Ming] Tsinghua Univ, Dept Phys, Beijing 100084, 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
关键词Quantum Phase-transitions Fermi-liquid Spin Liquid Heavy Electron Instability Expansion Systems Diagram Metals
学科领域Physics
资助者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 ; NSF of China; National Program for Basic Research of MOST-China
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收录类别SCI
语种英语
资助者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 ; NSF of China; National Program for Basic Research of MOST-China
WOS记录号WOS:000306923400011
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被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15057
专题2012年知识产出
通讯作者Liu, Y (reprint author), Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China.
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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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