Workshop 2025: Dipole interactions in chiral ferromagnets

Session Information

Location: Lecture room Schay
Day: Friday, 16 May
Time: 14:00 - 14:30
Chairperson: Michele Ruggeri

Presentation Details

Presentation Type: Oral presentation
Title: Dipole interactions in chiral ferromagnets
Abstract: It is known that the magnetization in a ferromagnet induces an internal demagnetizing magnetic field. This, in turn, generates a magnetostatic self-energy, coming from dipole-dipole interactions. In general, this energy is singular and intrinsically non-local, making its study a hard numerical challenge. We show how recent advances in constrained Newton flow, introduced to study Skyrmions in variants of the nuclear Skyrme model with extra meson fields, can reduce this to a computationally tractable problem. The effect of dipole interactions on skyrmions turns out to depend crucially on the form of the DM interaction, and is particularly striking in Heusler magnets.

Presenter

Prof Martin Speight
University of Leeds | United Kingdom

Authors

1. Speight, Martin | School of Mathematics, University of Leeds
2. Leask, Paul | Department of Physics, KTH Stockholm