Abstract
Domain growth in the two-dimensional random-exchange Ising ferromagnet Rb2Cu0.89Co0.11F4 is studied using ac and dc magnetization measurements. From a scaling analysis of the time and frequency dependences of the nonequilibrium part of the ac susceptibility the ferromagnetic domain size R(t) is found to grow according to R(t) α ⦜ln t]1/gy, with ψ = 14.
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