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DY: Fachverband Dynamik und Statistische Physik

DY 48: Granular Matter and Contact Dynamics

DY 48.7: Vortrag

Donnerstag, 21. März 2024, 16:30–16:45, BH-N 128

Magnetic Tubes - Instability of a Drug Deliverer — •Ingo Rehberg — Bayreuth University, Germany

Tubular assemblies of magnetic particles act as microrobots for cargo transport [1]. The magnetization of such tubes comes in two families: Circular magnetization is preferred for short tubes, and axial magnetization for longer ones [2, 3]. Introducing the strength of the outer dipole ring as an order parameter [4] in a numerical simulation unveils the nature of that transition from circular to axial states [5].

[1] Xiaoyu Wang et al., PNAS 120, e2304685120 (2023).

[2] Igor Stanković et al., Nanoscale 11, 2521 (2019).

[3] Adrien Wafflard et al., New J. Phys. 25, 063024 (2023).

[4] Simeon Völkel et al., JMMM 559, 169520 (2022).

[5] Ingo Rehberg, From Tetrahedra to Buckyballs -

Examine 486 Dipole Clusters with a Single Python Animation.

https://doi.org/10.5281/zenodo.10201571 (2023).

Keywords: magnetic cluster; magnetic tube; bifurcation; circular magnetization; axial magnetization

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