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DY: Fachverband Dynamik und Statistische Physik

DY 44: Poster Session: Statistical Physics and Critical Phenomena

DY 44.3: Poster

Thursday, September 8, 2022, 15:00–18:00, P2

Lane formation of gravitationally driven model colloids in two-dimensional linear channels — •Marc Isele, Kay Hofmann, and Peter Nielaba — Physics Department, University of Konstanz, Konstanz, Germany

We conducted Brownian dynamics simulations to investigate the segregation phenomena of driven model colloids in two-dimensional linear channels. Two kinds of spherical particles of different sizes were driven in the same direction by a gravitational force. The difference in driving force acting on these particles creates a segregation similar to the lane formation of oppositely driven colloids. We had a closer look at parameter values facilitating lane formation and the resulting lanes were examined more closely. This approach creates a system which is easier to reproduce in experiments than the conventional oppositely driven setups by tilting a linear channel with two particle kinds of different size.