Interface dynamics in a block copolymer melt and the effect of noise

The role of fluctuations in the disorder-lamellar transition in a block copolymer melt is investigated using a cell dynamical system simulation by measuring the propagation velocity of the interface between ordered and disordered regions. Our results strongly suggest that near the transition temperature, in the absence of noise, the velocity increases with quench depth as v∼√τ [τ=(Tc−T)Tc is the reduced temperature measured from the transition …