2004/09/21 by C. Reichhardt, C. J. Olson Reichhardt · 2 citations
Materials Science · Physics and Astronomy · #Material Dynamics and Properties #Pickering emulsions and particle stabilization #Theoretical and Computational Physics #cond-mat.soft
paper · pdf · doi:10.1103/physreve.72.032401
published as Phys. Rev. E 72, 032401 (2005) · 4 pages, 4 postscript figures
arxiv created 2004/09/21 · openalex publication_date 2005/09/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Using numerical simulations we study the pinning and dynamics of interacting colloids on periodic one-dimensional substrates. As a function of colloid density, temperature, and substrate strength, we find a variety of pinned and dynamic states including a locked smectic, pinned buckled, two-phase flow, and moving partially ordered structures. We show that for increasing colloid density, peaks in the depinning threshold occur at commensurate states. The scaling of the pinning threshold versus substrate strength changes when the colloids undergo a transition from one-dimensional chains to a buckled configuration.