2020/06/22 by Prasenjit Das, Prabhat K. Jaiswal, Sanjay Puri
Chemistry · Engineering · Materials Science · Mathematics · Physics and Astronomy · #Block Copolymer Self-Assembly #Chemical physics #Chemistry #Classical mechanics #Composite material #Computer science #Crossover #Fluid Dynamics and Thin Films #Kinetic energy #Materials science #Mathematics #Nanotechnology #Phase (matter) #Physics #Spinodal #Spinodal decomposition #Statistical physics #Surface (topology) #Theoretical and Computational Physics #Wetting #cond-mat.soft #cond-mat.stat-mech
paper · pdf · doi:10.1103/physreve.102.012803
published as Physical Review E 102 012803 (2020) · 19 Pages, 11 Figs, Accepted to Physical Review E
arxiv created 2020/06/22 · openalex publication_date 2020/07/16 · arxiv updated 2020/07/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Surface-directed spinodal decomposition (SDSD) is the kinetic interplay of phase separation and wetting at a surface. This process is of great scientific and technological importance. In this paper, we report results from a numerical study of SDSD on a chemically patterned substrate. We consider simple surface patterns for our simulations, but most of the results apply for arbitrary patterns. In layers near the surface, we observe a dynamical crossover from a surface-registry regime to a phase-separation regime. We study this crossover using layerwise correlation functions and structure factors and domain length scales.