Superconducting pairing symmetries in anisotropic triangular quantum antiferromagnets
J. Y. Gan, Yan Chen, F. C. Zhang
DOI 10.1103/PhysRevB.74.094515 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Motivated by the recent discovery of a low temperature spin liquid phase in layered organic compound κ−(ET)2Cu2(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 wave functions. The half filled electron system is a Mott insulator at large onsite repulsion U, and is a superconductor at a moderate U. The symmetry of the SC state depends on the anisotropy, and is gapful with dx2−y2+idxy symmetry near the isotropic limit and is gapless with dx2−y2 symmetry at small anisotropy ratio.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| κ-(ET)2Cu2(CN)3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.9 | Pressure not reported | unknown |
Similar papers
Mott Transition, Antiferromagnetism, and d-Wave Superconductivity in Two-Dimensional Organic Conductors
similarity 0.94B. Kyung & A.-M. S. Tremblay
Source status unknown — claims are unverified
Pressure-induced superconductivity and Mott transition in spin-liquid κ−(ET)2Cu2(CN)3 probed by C13 NMR
similarity 0.93Y. Shimizu et al.
Source status unknown — claims are unverified
Antiferromagnetism and Superconductivity in Layered Organic Conductors: Variational Cluster Approach
similarity 0.92P. Sahebsara & D. Sénéchal
Source status unknown — claims are unverified
Superconducting Pairing Symmetries in Anisotropic Triangular Quantum Antiferromagnets
similarity 0.92J. Y. Gan et al. · 2006 · arXiv:cond-mat/0605214
Source status unknown — claims are unverified
Partially ordered vortex lattices in the high-field low-temperature mixed state of quasi-two-dimensional organic superconductors
similarity 0.92A. Maniv et al.
Source status unknown — claims are unverified
X-ray fluorescence measurements of organic superconductors κ−(ET)2Cu[N(CN)2]Br and κ−(ET)2Cu(NCS)2
similarity 0.92E. Z. Kurmaev et al.
Source status unknown — claims are unverified