Dresden 2026 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 30: Complex Fluids, Colloids, Micelles and Vesicles I
CPP 30.2: Vortrag
Dienstag, 10. März 2026, 14:30–14:45, ZEU/0260
Brick by Brick - Magnetic Particle Transport — •Margaret Rosenberg1, Jonas Bugase2, Christian Janzen2, Rico Huhnstock2, Arno Ehresmann2, and Hartmut Löwen1 — 1Heinrich-Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf — 2Institute of Physics , University of Kassel, 34132 Kassel
Facilitated by advances in particle synthesis, anisotropic and anisometric magnetic micro- and nanoparticles have been intensely studied in recent years, as the particles' lack of symmetry can give rise to unique, tailor-able interactions. However, the modeling of off-equilibrium processes in non-trivial magnetic landscapes is still relatively under-explored. This contribution will seek to understand the ratchet-like transport process of a magnetically coated polymer block ("brick") across a stripe-patterned magnetic surface via a sequence of time-dependent external magnetic fields, from a simulation perspective. In particular, we explore the rotational behavior unlocked by the anisotropic particle shape, and discuss the connection to ongoing experiments.
Keywords: magnetic particles; brownian dynamics; driven matter