2015年
Heavy-Fermion Superconductivity and Localized-Itinerant Crossover in the Kondo Lattice
Physics Procedia
- 巻
- 75
- 号
- 開始ページ
- 326
- 終了ページ
- 331
- 記述言語
- 英語
- 掲載種別
- 研究論文(国際会議プロシーディングス)
- DOI
- 10.1016/j.phpro.2015.12.199
- 出版者・発行元
- Elsevier B.V.
Superconductivity in the two-dimensional Kondo lattice model is derived by means of the dual-fermion approach. This framework takes full account of local correlations based on the dynamical mean-field theory and further includes influence of critical antiferromagnetic fluctuations. It is found that pairing with dx2 -y2 symmetry similar to the Hubbard model appears only in the weak-coupling regime. As the coupling is increased, we observe transition to p-wave spin-singlet superconductivity. The emergence of the unconventional p-wave pairing is ascribed to formation of large Fermi surface, which embodies itinerancy of f electrons.
- リンク情報
- ID情報
-
- DOI : 10.1016/j.phpro.2015.12.199
- ISSN : 1875-3892
- ISSN : 1875-3884
- SCOPUS ID : 84974715492
- Web of Science ID : WOS:000381129300046