Spin Singlet Ordering Suggested by Repulsive Interactions
| dc.creator | Nayak, Chetan | |
| dc.creator | Wilczek, Frank | |
| dc.date | 1995-10-23 | |
| dc.date.accessioned | 2026-07-25T23:34:49Z | |
| dc.description | We consider a correlated wavefunction including particle-hole pairing at half a reciprocal lattice vector for itinerant electrons hopping on a square lattice in two dimensions and subject both to on-site and nearest-neighbor repulsion. We find, within mean field theory, that in a suitable range of parameters there is a tendency toward a novel form of ordering characterized by discrete symmetry breaking and a gap at the magnetic zone boundary, which supports hole-like semiconductor behavior near half filling despite an apparently normal Fermi surface. The effective quasiparticle couplings to phonons includes a significant d-wave piece, which plausibly leads to an especially robust tendency toward superconductivity. | |
| dc.description | 12 pages, no figures, Phyzzx | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9510132 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9510132 | |
| dc.identifier.uri | https://dspace.dare.co.zw/handle/123456789/99691 | |
| dc.subject | Condensed Matter | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Spin Singlet Ordering Suggested by Repulsive Interactions | |
| dc.type | text |