中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
d-wave superconductivity induced by short-range antiferromagnetic correlations in the two-dimensional Kondo lattice model

文献类型:期刊论文

作者Yu, L
刊名PHYSICAL REVIEW B
出版日期2012
卷号86期号:2页码:24526
关键词QUANTUM PHASE-TRANSITIONS FERMI-LIQUID SPIN LIQUID HEAVY ELECTRON INSTABILITY EXPANSION SYSTEMS DIAGRAM METALS
ISSN号1098-0121
通讯作者Liu, Y (reprint author), Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China.
英文摘要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.
学科主题Physics
收录类别SCI
资助信息NSF of China; National Program for Basic Research of MOST-China
原文出处http://dx.doi.org/10.1103/PhysRevB.86.024526
语种英语
WOS记录号WOS:000306923400011
公开日期2014-04-25
源URL[http://ir.itp.ac.cn/handle/311006/15057]  
专题理论物理研究所_理论物理所1978-2010年知识产出
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Yu, L. 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 Yu, L.(2012).d-wave superconductivity induced by short-range antiferromagnetic correlations in the two-dimensional Kondo lattice model.PHYSICAL REVIEW B,86(2),24526.
MLA Yu, L."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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来源:理论物理研究所

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