Late stages of coarsening in model C

[摘要] 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. (C) 2002 Published by Elsevier Science B.V.

[发布日期] 2002-08-01

[效力级别]  Proceedings Paper

[关键词] model C;microcanonical;phi(4) model