A DCAMM seminar will be presented by
Professor Ingo Rehberg
University of Bayreuth, Germany
Abstract:
Using magnetic spheres [1] together with an open-source graphical user interface [2], this talk illustrates basic features of magnetic interaction leading to three applications based on magnetic particles:
- Two dipoles realize two different cogging-free magnetic gears [3].
- No moving parts are needed to pump magnetic fluids [4].
- Icosahedral ordering of magnets is best for achieving homogenous fields [5].
[1] S. Hartung et al., Physical Review B 98, 214424 (2018).
[2] I. Rehberg & P. Blümler. Halbach_two_point_oh: Optimize Uniform Fields with Clusters and Rings of Permanent Magnets. Zenodo https://doi.org/10.5281/zenodo.17185412 (2025).
[3] S. Hartung, I. Rehberg, Arch Appl Mech 91, 1423 (2021).
[4] R. Krauß et al., Pumping fluid by magnetic surface stress, New Journal of Physics 8, 18 (2006)
[5] I. Rehberg and Peter Blümler, Discretized Halbach spheres: Icosahedral symmetry for optimal field homogeneity, Phys. Rev. Appl. (2026).
Cake, coffee and tea will be served 15 minutes before the seminar starts.
All interested persons are invited