Domain Growth in a 1-D Driven Diffusive System

Details Domain Growth in a 1-D Driven Diffusive System Domain Growth in a 1-D Driven Diffusive System

1996-03-21

arxiv.org/abs/cond-mat/9603143v1

Phys. Rev. E 54 (1996) 1153

Physics

Condensed Matter

8 pages, REVTeX, 7 Postscript figures, uses multicol.sty and epsf.sty. Submitted to Phys. Rev. E

Scientific paper

10.1103/PhysRevE.54.1153

The low-temperature coarsening dynamics of a one-dimensional Ising model, with conserved magnetisation and subject to a small external driving force, is studied analytically in the limit where the volume fraction \mu of the minority phase is small, and numerically for general \mu. The mean domain size L(t) grows as t^{1/2} in all cases, and the domain-size distribution for domains of one sign is very well described by the form P_l(l) \propto (l/L^3)\exp[-\lambda(\mu)(l^2/L^2)], which is exact for small \mu (and possibly for all \mu). The persistence exponent for the minority phase has the value 3/2 for \mu \to 0.

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