2015/05/31 by Simon N. Weber, Christoph A. Weber, Erwin Frey · 4 citations
Materials Science · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Micro and Nano Robotics #Pickering emulsions and particle stabilization #cond-mat.soft
paper · pdf · doi:10.1103/physrevlett.116.058301
published as Phys. Rev. Let. 116, 058301 (2016) · 5 figures in main text, 8 figures in Supplemental Material
openalex publication_date 2016/02/04 · arxiv created 2016/02/14 · arxiv updated 2016/03/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
The influence of size differences, shape, mass and persistent motion on phase separation in binary mixtures has been intensively studied. Here we focus on the exclusive role of diffusivity differences in binary mixtures of equal-sized particles. We find an effective attraction between the less diffusive particles, which are essentially caged in the surrounding species with the higher diffusion constant. This effect leads to phase separation for systems above a critical size: A single close-packed cluster made up of the less diffusive species emerges. Experiments for testing of our predictions are outlined.