Volume 47, Number 2, July II 1999
|Page(s)||158 - 163|
|Published online||01 September 2002|
Preasymptotic multiscaling in the phase-ordering dynamics of the kinetic Ising model
The Abdus Salam International Centre for Theoretical Physics Strada Costiera 11, P.O. Box 586, 34100 Trieste, Italy
2 Istituto Nazionale di Fisica della Materia, Unità di Salerno and Dipartimento di Fisica Università di Salerno - I-84081 Baronissi (Salerno), Italy
Accepted: 13 May 1999
The evolution of the structure factor is studied during the phase-ordering dynamics of the kinetic Ising model with conserved order parameter. A preasymptotic multiscaling regime is found as in the solution of the Cahn-Hilliard-Cook equation, revealing that the late stage of phase ordering is always approached through a crossover from multiscaling to standard scaling, independently of the nature of the microscopic dynamics.
PACS: 05.70.Fh – Phase transitions: general studies / 64.60.Cn – Order-disorder transformations; statistical mechanics of model systems / 64.75.+g – Solubility, segregation, and mixing; phase separation
© EDP Sciences, 1999
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