Green’s function methods for modelling neutron scattering in multi-level spin systems
Jeudi 21 octobre 2021 14:00
- Duree : 1 heure
Lieu : Institut Néel Bat D, salle D420 + zoom videoconference
Orateur : Harry LANE (Univ. Edinburgh, UK)
VISIO-CONFERENCE : Zoom
Abstract :
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.
Contact : elsa.lhotel@neel.cnrs.fr
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