Chiral superconducting phase and chiral spin-density-wave phase in a Hubbard model on the kagome lattice
By Shun-li Yu, Jian-xin Li. 2011
186 citations recorded by the source corpus.
We study the electronic instabilities of the Hubbard model in the 1/6 hole-doped Kagome lattice using the variational cluster approach. The 1/6 hole doping is unique in the sense that the Fermi level is at the von Hove singularity and the Fermi surface has a perfect nesting. In this case, a density wave is usually realized. However, we demonstrate here that the chiral $d_{x^{2}-y^{2}}+id_{xy}$ superconducting state is most favorable when a small Hubbard interaction U(U 5.0t). Between them, a spin-disordered insulating state is proposed.
Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics
View Paper: https://www.semanticscholar.org/paper/f8a473e59fbdfe6514de3c77e6a0d7e45c68501a
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In Atomic and Molecular Physics, and Optics
Citations in the corpus
- Superconductivity in the Z2 kagome metal KV3Sb5 (2020, background): “[18] S.”
- Quantum states and intertwining phases in kagome materials (2023, background): “…1 or very small) tend to favour magnetism (such as ferromagnetic or antiferromagnetic order) with strong spin fluctuations and chiral spin order 43,103 , whereas CDWs, nematic orders and s -wave superconductivity are favoured by long-range correlations from a large U 1 (where U 0 is zero or…”