2. Magnon spectra in layered samples: From NN exchange to dipolar coupling
Résumé
The dispersion relations of progressive spin waves and the stationary normal modes in thin films are derived according to a unified picture, by means of dynamical and transfer matrices. The full spectrum of stationary excitations and their localization properties are deduced. Numerical calculations confirm the increasing complexity of both dispersion relation and stationary mode localization when increasing interaction range. Recent experimental observations and micromagnetism simulations are confronted with these results. PACS numbers: 75.30.Ds; 72.15.Rn
Domaines
Physique [physics]
Origine : Accord explicite pour ce dépôt
Loading...