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Quantum Materials : Mardi 21 octobre à 14h

Harry LANE, (University of Edinburgh)

Salle D420 + Zoom link:



Title: « Green’s function methods for modelling neutron scattering in multi-level spin systems  »


Linear spin wave theory has enjoyed remarkable success in modelling the spin excitations of localized magnets. The typical approach is to project the system into an effective spin-only model and treat the problem semi-classically. However, in real crystals such a projection is not always valid, owing to a poor separation of single-ion energy scales. In this talk I will discuss a flexible framework which allows for the treatment of multiple degrees of freedom and present some applications in the modelling of neutron scattering experiments on real systems.