Dispersion in magnetostatic CoTaZr spin wave-guides

A. Kozhanov (1) , D. Ouellette (1) , Z. Griffith (1) , M. Rodwell (1) , A. P. Jacob (2) , D. W. Lee (3) , S. X. Wang (3) , S. J. Allen (1) ((1)California Nanosystems Institute

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University of California at Santa Barbara Santa Barbara CA (2) Technology Manufacturing Group Intel Corporation Santa Clara CA & Western Institute of Nanoelectronics (WIN) UCLA Los Angeles (3)Department of Materials Science Engineering Sanford University Stanford CA)

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classification ❄️ cond-mat.mtrl-sci

keywords spindispersioncotazrmagnetostaticwavewave-guidesagreementattenuation

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Magnetostatic spin wave dispersion and loss are measured in micron scale spin wave-guides 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 microns are several of orders of magnitude shorter than that predicted from eddy currents in these thin wires.

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Dispersion in magnetostatic CoTaZr spin wave-guides

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