Ferromagnetic Resonance in Permalloy Metasurfaces
N. Noginova, V. Gubanov, M. Shahabuddin, Yu. Gubanova, S. Nesbit, V., V. Demidov, V.A. Atsarkin, E. N. Beginin, A. V. Sadovnikov
TL;DR
This study investigates ferromagnetic resonance in permalloy metasurfaces with 1D profile modulation, revealing angular dependence and standing spin wave resonances, relevant for magnetic metamaterials and magnonics.
Contribution
It demonstrates the fabrication and analysis of permalloy metasurfaces with submicron periodicity, combining experimental FMR measurements and micromagnetic simulations.
Findings
Main resonance shows in-plane angular dependence.
Multiple standing spin wave resonances are observed.
Results are relevant for magnetic metamaterials and magnonics.
Abstract
Permalloy films with one-dimensional (1D) profile modulation of submicron periodicity are fabricated based on commercially available DVD-R discs and studied using ferromagnetic resonance (FMR) method and micromagnetic numerical simulations. The main resonance position shows in-plane angular dependence which is strongly reminiscent of that in ferromagnetic films with uniaxial magnetic anisotropy. The main signal and additional low field lines are attributed to multiple standing spin wave resonances defined by the grating period. The results may present interest in magnetic metamaterials and magnonics applications.
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Taxonomy
TopicsMetamaterials and Metasurfaces Applications · Photonic Crystals and Applications · Plasmonic and Surface Plasmon Research