Magnetic resonance studies of the fundamental spin-wave modes in individual submicron Cu/NiFe/Cu perpendicularly magnetized disks.
Résumé
Spin wave spectra of perpendicularly magnetized disks with trilayers consisting of a 100~nm permalloy (Py) layer sandwiched by two Cu layers of 30~nm, are measured individually with a Magnetic Resonance Force Microscope (MRFM). It is demonstrated by 3D micromagnetic simulations that in disks having sub-micron size diameters, the lowest energy spin wave mode of the saturated state is not spatially uniform but rather is localized at the center of the Py/Cu interface in the region of a minimum demagnetizing field.
Fichier principal
lt10267.pdf (1.62 Mo)
Télécharger le fichier
schematic.pdf (12.93 Ko)
Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Format : Autre