Late stages of coarsening in model C

Details Late stages of coarsening in model C Late stages of coarsening in model C

2002-09-30

arxiv.org/abs/cond-mat/0209683v1

Physica D, 168-169, 80 (2002)

Physics

Condensed Matter

Statistical Mechanics

8 pages

Scientific paper

10.1016/S0167-2789(02)00497-9

We present a comprehensive picture of (non-critical) domain growth in model C systems where a non-conserved scalar order parameter is coupled to a conserved concentration field. For quenches into the region where the ordered and disordered phases coexist, we confirm earlier partial numerical results and find a growth exponent $z=3$. For quenches into the ordered region, we confirm the theoretical prediction $z=2$. Finally we discuss the implications of our results for domain growth in the microcanonical $\phi^4$-model and we offer some criticism of the work of Somoza and Sagui on the morphology and wetting properties of domains.

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