Magnetostatic interaction energy between a point magnet and a ring magnet

We find an exact closed-form expression for the magnetostatic interaction energy between a point magnet and a ring magnet in terms of complete elliptic integrals. The exact expression for the energy exhibits an equilibrium point close to the axis of symmetry of the ring magnet. Our methodology will...

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Bibliographic Details
Published in:Physics open 2023-05, Vol.15, p.100140, Article 100140
Main Authors: Warnakulasooriya, Niranjan, Gallaba, Dinuka H., Marchetta, John Joseph, Wetzel, Duston, Parashar, Prachi, Shajesh, K.V.
Format: Article
Language:English
Subjects:
Casimir Effect
Classical Electrodynamics
Magnetic levitation
Quantum Electrodynamics
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Summary:We find an exact closed-form expression for the magnetostatic interaction energy between a point magnet and a ring magnet in terms of complete elliptic integrals. The exact expression for the energy exhibits an equilibrium point close to the axis of symmetry of the ring magnet. Our methodology will be useful in investigations concerning magnetic levitation, and in the study of Casimir levitation.
ISSN:2666-0326
2666-0326
DOI:10.1016/j.physo.2023.100140