Abstract
The domain size distribution of a magnetization obeying the time-dependent Ginzburg-Landau equation driven by a dichotomous Markov noise is discussed. The ensemble average of the distribution function 〈n(l, t)〉 for the domain size l obeys a power law 〈n(l, t)〉 ∝ l−β with β ' 2. A phenomenological evolution equation of n(l, t) is proposed, and a mechanism for constructing the power-law distribution is investigated by using the evolution equation.
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