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Phase transformation in a lattice system in the presence of spin-exchange dynamics.
- Source :
-
Journal of Chemical Physics . 2/8/2004, Vol. 120 Issue 6, p2851-2856. 6p. 5 Graphs. - Publication Year :
- 2004
-
Abstract
- A joint action of the Glauber single-spin-flip and the Kawasaki spin-exchange mechanisms upon the processes of phase transformation is examined in the framework of the one-dimensional kinetic Ising model. It is shown that the addition of the Kawasaki dynamics to that of Glauber accelerates the process of phase transformation in the initial stage, but slows it down in later stages. For the truncated form of Glauber dynamics, which excludes the processes of splitting and coagulation of clusters, the addition of the Kawasaki dynamics always accelerates the phase transformation process. Acting alone, the Kawasaki mechanism provides a cluster growth proportional to t[sup 1/2] (where t is the time) in the initial stage and proportional to t[sup 1/3] (Lifshitz–Slyozov–Wagner law) in the intermediate stage. In the final stage, a cluster size approaches exponentially its equilibrium value. © 2004 American Institute of Physics. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SPIN exchange
*DYNAMICS
*CHEMISTRY
*PHYSICS
*PHYSICAL sciences
*SCIENCE
Subjects
Details
- Language :
- English
- ISSN :
- 00219606
- Volume :
- 120
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Journal of Chemical Physics
- Publication Type :
- Academic Journal
- Accession number :
- 12202196
- Full Text :
- https://doi.org/10.1063/1.1638376