Dynamics and thermodynamics of the spherical frustrated Blume-Emery-Griffiths model
- 2 October 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 66 (4), 046101
- https://doi.org/10.1103/physreve.66.046101
Abstract
We introduce a spherical version of the frustrated Blume-Emery-Griffiths model and solve exactly the statics and the Langevin dynamics for zero particle-particle interaction In this case the model exhibits an equilibrium transition from a disordered to a spin glass phase, which is always continuous for nonzero temperature. The same phase diagram results from the study of the dynamics. Furthermore, we note the existence of a nonequilibrium time regime in a region of the disordered phase, characterized by aging, as occurs in the glassy phase. Due to a finite equilibration time, the system displays in this region the pattern of interrupted aging.
Keywords
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