Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice
| dc.creator | Strecka, Jozef | |
| dc.creator | Canova, Lucia | |
| dc.date | 2005-07-15 | |
| dc.date | 2006-03-31 | |
| dc.date.accessioned | 2026-07-07T06:41:21Z | |
| dc.date.available | 2026-07-07T06:41:21Z | |
| dc.description | The mixed spin-1/2 and spin-3/2 Ising model on the extended Kagomé lattice is solved by establishing a mapping correspondence with the eight-vertex model. Letting the parameter of uniaxial single-ion anisotropy tend to infinity, the model becomes exactly soluble as a free-fermion eight-vertex model. Under this restriction, the critical points are characterized by critical exponents from the standard Ising universality class. In a certain subspace of interaction parameters that corresponds to a coexistence surface between two ordered phases, the model becomes exactly soluble as a symmetric zero-field eight-vertex model. This surface is bounded by a line of bicritical points that have non-universal interaction-dependent critical exponents. | |
| dc.description | 9 pages, 6 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0507366 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0507366 | |
| dc.identifier | Condens. Matter Phys. 9 (2006) 179 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/101641 | |
| dc.subject | Statistical Mechanics | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.title | Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice | |
| dc.type | text |