Ising spinodal decomposition at T=O in one to five dimensions

Monte Carlo simulations determine the fraction of not yet flipped spins as a function of time, if the initial spin configuration is random in a nearest-neighbour Ising model. The exponent of Derrida, Bray and Godreche (1994) in one and two dimensions is reconfirmed for much larger systems and generalized to three dimensions. In five and more dimensions, this nearest-neighbour Ising model suggests an asymptotically finite fraction of never flipping spins.