Volume 56, Number 5, December 2001
|Page(s)||741 - 747|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 December 2003|
Spin waves propagation and confinement in conducting films at the micrometer scale
Physique de l'Etat Condensé, CEA
Saclay - 91191 Gif-sur-Yvette, France
2 Fachbereich Physik, Universität Kaiserslautern - 67653 Kaiserslautern, Germany
Corresponding author: firstname.lastname@example.org
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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