A ferromagnet with a glass transition
arXiv:cond-mat/0103026 · doi:10.1209/epl/i2001-00438-4
Abstract
We introduce a finite-connectivity ferromagnetic model with a three-spin interaction which has a crystalline (ferromagnetic) phase as well as a glass phase. The model is not frustrated, it has a ferromagnetic equilibrium phase at low temperature which is not reached dynamically in a quench from the high-temperature phase. Instead it shows a glass transition which can be studied in detail by a one step replica-symmetry broken calculation. This spin model exhibits the main properties of the structural glass transition at a solvable mean-field level.
7 pages, 2 figures, uses epl.cls (included)