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Description
Magnetic hopfions are three-dimensional topological spin textures characterised by non-local invariants and a rich internal structure, making them promising candidates for novel spintronic and transport phenomena. Weyl semimetals provide a natural electronic platform to probe such textures, as their low-energy quasiparticles behave as relativistic chiral fermions that are highly sensitive to magnetic order.
In this work, we investigate the scattering of Weyl electrons from magnetic hopfions. We model the coupling between the electron spin and the local magnetisation through an exchange interaction and analyse the resulting scattering problem using both the Born and eikonal approximations, highlighting the distinct physical regimes in which each approach applies. Our results demonstrate how the internal structure of hopfions imprint characteristic signatures on Weyl electron scattering as compared to that of conventional electrons with quadratic dispersion relations. This provides a potential route for scattering signatures to be detected in magnetic Weyl semimetals.
| Field of Condensed Matter | Magnetism |
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