Magnetic resonance studies of the fundamental spin-wave modes in individual submicron Cu/NiFe/Cu perpendicularly magnetized disks. - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review Letters Année : 2007

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.
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Dates et versions

hal-00079170 , version 1 (09-06-2006)
hal-00079170 , version 2 (20-01-2007)
hal-00079170 , version 3 (22-01-2007)

Identifiants

Citer

G. de Loubens, V. V. Naletov, Olivier Klein, J. Ben Youssef, F. Boust, et al.. Magnetic resonance studies of the fundamental spin-wave modes in individual submicron Cu/NiFe/Cu perpendicularly magnetized disks.. Physical Review Letters, 2007, 98, pp.127601. ⟨hal-00079170v3⟩
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