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Dresden 2017 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 31: Particulate Matter I: From microscopic interactions to collective motion (Focus session)

DY 31.5: Talk

Wednesday, March 22, 2017, 11:00–11:15, ZEU 118

Dynamics of particles in self-generated flowRan Niu, Thomas Palberg, and •Thomas Speck — Institut für Physik, Johannes Gutenberg-Universität Mainz

Colloidal particles are an established model system for a range of microscopic processes in condensed matter. While interactions can be tuned, truly long-range attractions so far have not been possible. Here we report on experiments using ion exchange particles, whereby the release of ions generates a flow above a substrate. We show that this flow leads to effective forces over hundreds of microns and discuss ramifications.

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