DCAMM Seminar (Ingo Rehberg ): From Magnetic Pumps and Gears to Halbach Spheres: Applying permanent magnets
Using magnetic spheres together with an open-source graphical user interface, this talk illustrates basic features of magnetic interaction leading to three applications based on magnetic particles.
Info about event
Time
Location
Building 5510, room 104, Aarhus University Åbogade 15
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:
1) Two dipoles realize two different cogging-free magnetic gears [3].
2) No moving parts are needed to pump magnetic fluids [4].
3) Icosahedral ordering of magnets is best for achieving homogenous fields [5]
Danish pastry, coffee and tea will be served 15 minutes before the seminar starts.
All interested persons are invited.
Virtual participation:
Teams Link Meeting ID: 396 354 126 706 701; Passcode: Xq7xQ6kU
About the speaker
Prof. Dr. Ingo Rehberg
University Bayreuth, Bayreuth, Germany
More about DCAMM
References
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).