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-symmctry-broken calculation. This spin model exhibits the main properties of the structural glass transition at a solvable mean-field level.
A ferromagnet with a glass transition / S., Franz; M., Mezard; RICCI TERSENGHI, Federico; M., Weigt; R., Zecchina. - In: EUROPHYSICS LETTERS. - ISSN 0295-5075. - 55:4(2001), pp. 465-471. [10.1209/epl/i2001-00438-4]
A ferromagnet with a glass transition
RICCI TERSENGHI, Federico;
2001
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-symmctry-broken calculation. This spin model exhibits the main properties of the structural glass transition at a solvable mean-field level.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
