Issue |
Europhys. Lett.
Volume 56, Number 5, December 2001
|
|
---|---|---|
Page(s) | 741 - 747 | |
Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
DOI | https://doi.org/10.1209/epl/i2001-00583-2 | |
Published online | 01 December 2003 |
Spin waves propagation and confinement in conducting films at the micrometer scale
1
Service de
Physique de l'Etat Condensé, CEA
Saclay - 91191 Gif-sur-Yvette, France
2
Fachbereich Physik, Universität Kaiserslautern - 67653
Kaiserslautern, Germany
Corresponding author: bailleul@drecam.saclay.cea.fr
Received:
2
August
2001
Accepted:
21
September
2001
The propagating spin wave spectroscopy (PSWS) technique is applied
for the first time to metallic thin film patterns, allowing to
measure their magnetostatic wave modes. Using micrometer scale
local excitation and detection, we show that magnetostatic
surface waves propagate on a distance as long as
in a continuous permalloy film. In micrometer wide permalloy
stripes, we observe both quantized spin wave modes and
quasi-saturation modes, well explained by existing models. In
addition, low-frequency additional modes were observed which, we
suggest, are generated in the magnetically inhomogeneous edge
regions.
PACS: 75.30.Ds – Spin waves / 76.50.+g – Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance / 07.57.Pt – Submillimeter wave, microwave and radiowave spectrometers; magnetic resonance spectrometers, auxiliary equipment, and techniques
© EDP Sciences, 2001
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