Berlin 2024 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
DY: Fachverband Dynamik und Statistische Physik
DY 25: Active Matter III (joint session DY/BP/CPP)
DY 25.11: Talk
Wednesday, March 20, 2024, 12:30–12:45, BH-N 334
Optimising transport of active magnetic particles with finite internal magnetic anisotropy — Andrey Kuznetsov1, Ekaterina Novak2, Vladimir Zverev2, Tatyana Belyaeva2, and •Sofia Kantorovich1 — 1University of Vienna, Vienna, Austria — 2Ekaterinburg, Russia
In recent years, we have observed a rapid development in synthesis techniques that opens up new avenues for tailoring magnetic nanoparticles, including their size, shape, and internal anisotropy. The concept of creating magnetically controllable colloids with finely tuneable rheological properties on the nano- or micro-scale has sparked significant experimental and theoretical efforts but remains not fully realised. In this contribution, we employ molecular dynamics computer simulations to investigate the interplay between internal particle magnetic relaxation dynamics and particle self-propulsion. Our findings demonstrate that optimal transport can be achieved by selecting the strength of an applied magnetic field based on the particle's material and size. This, in turn, opens up an avenue for active magnetic particle sorting.
Keywords: active magnetic particles; finite magnetic anisotropy; magnetic field; directional transport