Superconducting Pairing Symmetries in Anisotropic Triangular Quantum Antiferromagnets
| dc.creator | Gan, J. Y. | |
| dc.creator | Chen, Yan | |
| dc.creator | Zhang, F. C. | |
| dc.date | 2006-05-09 | |
| dc.date.accessioned | 2026-07-07T07:08:50Z | |
| dc.date.available | 2026-07-07T07:08:50Z | |
| dc.description | Motivated by the recent discovery of a low temperature spin liquid phase in layered organic compound $κ$-(ET)$_2$Cu$_2$(CN)$_3$ which becomes a superconductor under pressure, we examine the phase transition of Mott insulating and superconducting (SC) states in a Hubbard-Heisenberg model on an anisotropic triangular lattice. We use a renormalized mean field theory to study the Gutzwiller projected BCS wavefucntions. The half filled electron system is a Mott insulator at large on-site repulsion $U$, and is a superconductor at a moderate $U$. The symmetry of the SC state depends on the anisotropy, and is gapful with $d_{x^2-y^2}+id_{xy}$ symmetry near the isotropic limit and is gapless with $d_{x^2-y^2}$ symmetry at small anisotropy ratio. | |
| dc.description | 6 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0605214 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0605214 | |
| dc.identifier | Phys. Rev. B 74, 094515 (2006) | |
| dc.identifier | doi:10.1103/PhysRevB.74.094515 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/110856 | |
| dc.subject | Superconductivity | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Superconducting Pairing Symmetries in Anisotropic Triangular Quantum Antiferromagnets | |
| dc.type | text |