Magnetization reversal in exchange-spring bilayer system under circularly polarized microwave field - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue IEEE Transactions on Magnetics Année : 2014

Magnetization reversal in exchange-spring bilayer system under circularly polarized microwave field

Résumé

Microwave assisted magnetization reversal are studied in the bulk bilayer exchange coupled system. We investigate the nonlinear magnetization reversal dynamics in a perpendicular exchange spring media using Landau-Lifshitz equation. In the limit of the infinite thickness of the system, the propagation field leads the reversal of the system. The reduction of the switching field and the magnetization profile in the extended system are studied numerically. The possibility to study the dynamics analytically is discussed and an approximation where two P-modes are coupled by an interaction field is presented. The ansatz used for the interaction field is validated by comparison with the numerical results. This approach is shown to be equivalent to two exchange coupled macrospins.
Fichier principal
Vignette du fichier
Manuscript-Intermag-revision.pdf (250.11 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01128376 , version 1 (09-03-2015)

Identifiants

Citer

R Tayade, A Pasko, C Serpico, F Mazaleyrat, M Lobue. Magnetization reversal in exchange-spring bilayer system under circularly polarized microwave field. IEEE Transactions on Magnetics, 2014, 50 (11), pp.7100904. ⟨10.1109/TMAG.2014.2325059⟩. ⟨hal-01128376⟩
202 Consultations
83 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More