Pattspin · Pattern formation in systems of magnetic spinners

The collective behavior of magnetic particles in rotating fields opens challenging physical questions and suggests their role as model systems for nonlinear behavior in soft matter physics. Their non-equilibrium phase diagrams show a wide range of patterns. From the experimental perspective, the control by an external magnetic field of collective dynamics of particles with permanent dipoles, namely magnetic spinners, offers a promising route for applications such as chiral fluids, cargo transport, and targeted delivery. However, the full comprehensive understanding of pattern control of the magnetic-responsive aggregates remains challenging and it lacks a profound investigation, which is crucial for future applications. This proposal aims to investigate the pattern formation in systems of magnetic spinners by theoretical approaches, which are compared to experimental data, to find characteristic parameters and rules. Studies will make use, of particle-resolved computer simulations such as Langevin Dynamics Simulation, based on Langevin equations to investigate the interplay among magnetic, hydrodynamics, and lubrication interaction.