On-Off Intermittency in Randomly Driven Nonlinear Ferromagnetic Resonance
A. Krawiecki and A. Sukiennicki
Institute of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warszawa, Poland
Received: October 19, 1995; in final form: December 1, 1995
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Simple models of nonlinear ferromagnetic resonance are considered which describe perpendicular resonance and parallel pumping with the rf field amplitude changing randomly and chaotically in time. On-off intermittency is obtained from the numerical solution of the equations of motion for the spin-wave amplitudes when the mean value of the rf field amplitude exceeds the Suhl instability threshold. Possible experimental applications are discussed.
DOI: 10.12693/APhysPolA.89.37
PACS numbers: 05.45.+b, 76.50.+g, 75.30.Ds