Ferromagnetic resonance in submicron permalloy stripes

TL;DR

This paper investigates ferromagnetic resonance in submicron permalloy stripes through experiments and simulations, revealing complex spatial magnetization oscillations influenced by sample orientation.

Contribution

It provides a detailed analysis of the spatial structure of resonant magnetization oscillations in permalloy microstripes, combining experimental data with micromagnetic simulations.

Findings

Resonant oscillations include quasi-homogeneous, spin-wave, and edge modes.

Oscillation modes depend strongly on the sample orientation.

Complex spatial structures are identified in the resonance behavior.

Abstract

We present the results of systematic experimental investigations and micromagnetic simulations for the ferromagnetic resonance in rectangular permalloy microstripes. It is shown that the resonant magnetization oscillations have a complex spatial structure including a quasi-homogeneous precession, lateral spin-wave resonances and localized edge modes, which strongly depend on sample orientation in an external magnetic field.