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 |
| 推荐引用方式 GB/T 7714 | 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. |
入库方式： OAI收割
来源：理论物理研究所
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