期刊
EUROPHYSICS LETTERS
卷 56, 期 5, 页码 741-747出版社
E D P SCIENCES
DOI: 10.1209/epl/i2001-00583-2
关键词
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The propagating spin wave spectroscopy (PSWS) technique is applied for the rst 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 40 mum in a continuous permalloy lm. 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.
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