Grand canonical stochastic potential for ordering and phase coexistence in driven systems
- 1 April 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 45 (13) , 7517-7520
- https://doi.org/10.1103/physrevb.45.7517
Abstract
For a kinetic Ising model with two competing dynamics, applied to an AB alloy, we build a mean-field grand canonical potential which governs the steady-state probability distribution of the concentration and long-range order parameter. We then compute the dynamical equilibrium phase diagram for a driven body-centered-cubic alloy with negative mixing enthalpy (analogous to an antiferromagnet) and predict an induced phase coexistence for B2 ordering.Keywords
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