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First order parametric instability of quasi-surface spin waves in ferromagnetic films

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3 Author(s)
B. A. Kalinikos ; V.I. Ulyanov Electr. Eng. Inst., Leningrad, USSR ; A. N. Slavin ; V. I. Ulyanov

A theory is presented for the first-order (three-wave) parametric instability of a quasi-surface spin wave propagating in a tangentially magnetized ferromagnetic film. It is taken into account that the propagating quasi-surface spin wave is excited by the localized pumping magnetic field (e.g. the field of a microstrip antenna), and the threshold value of this field is calculated. Theoretical results are compared to the results of experiments performed on yttrium-iron-garnet films

Published in:

IEEE Transactions on Magnetics  (Volume:27 ,  Issue: 6 )