Ground State Structure of Random Magnets
| dc.creator | Bastea, Sorin | |
| dc.creator | Duxbury, Philip M. | |
| dc.date | 1998-01-12 | |
| dc.date | 1998-10-08 | |
| dc.date.accessioned | 2026-07-07T06:25:00Z | |
| dc.date.available | 2026-07-07T06:25:00Z | |
| dc.description | Using exact optimization methods, we find all of the ground states of +/- h random-field Ising magnets (RFIM) and of dilute antiferromagnets in a field (DAFF). The degenerate ground states are usually composed of isolated clusters (two-level systems) embedded in a frozen background. We calculate the paramagnetic response (sublattice response) and the ground state entropy for the RFIM (DAFF) due to these clusters. In both two and three dimensions there is a broad regime in which these quantities are strictly positive, even at irrational values of h/J (J is the exchange constant). | |
| dc.description | REVTEX, 5 included figures (1 color) | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9801108 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9801108 | |
| dc.identifier | Phys. Rev. E 58, 4261 (1998) | |
| dc.identifier | doi:10.1103/PhysRevE.58.4261 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/96732 | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.subject | Statistical Mechanics | |
| dc.title | Ground State Structure of Random Magnets | |
| dc.type | text |