Hoshino, T (reprint author), Tokyo Metropolitan Univ, Grad Sch Sci & Engn, Dept Chem, Tokyo 1920397, Japan.
Motivated by the experimental study of Tayebi et al. [Nat. Mater. 11, 1074 (2012)] on phase separation of stacked multi-component lipid bilayers, we propose a model composed of stacked two-dimensional Ising spins. We study both its static and dynamical features using Monte Carlo simulations with Kawasaki spin exchange dynamics that conserves the order parameter. We show that at thermodynamical equilibrium, due to strong inter-layer correlations, the system forms a continuous columnar structure for any finite interaction across adjacent layers. Furthermore, the phase separation shows a faster dynamics as the inter-layer interaction is increased. This temporal behavior is mainly due to an effective deeper temperature quench because of the larger value of the critical temperature, T-c, for larger inter-layer interaction. When the temperature ratio, T/T-c, is kept fixed, the temporal growth exponent does not increase and even slightly decreases as a function of the increased inter-layer interaction. (C) 2015 AIP Publishing LLC.
; Physics, Atomic, Molecular & Chemical
QUENCHED BINARY ALLOY
; 2-DIMENSIONAL MODEL SYSTEM
; TIME EVOLUTION
; UNBINDING TRANSITION
Tokyo Metropolitan University
; Ministry of Education, Culture, Sports, Science, and Technology of Japan 
; Japan Society for the Promotion of Science (JSPS) 
; JSPS Core-to-Core Program "International Research Network for Non-equilibrium Dynamics of Soft Matter"
; Israel Science Foundation [438/12]
; United States-Israel Binational Science Foundation [2012/060]