Magnetostatic spin wave dispersion and loss are measured in micron scale spin waveguides in ferromagnetic metallic CoTaZr. Results are in good agreement with model calculations of spin wave dispersion and up to three different modes are identified. Attenuation lengths of the order of 3 μm are several orders of magnitude shorter than that predicted from eddy currents in these thin wires.
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Kozhanov et al. (2009) studied this question.
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