Spin waves hold great promise for energy-efficient hardware for information processing because of their low-energy and small wavelength at GHz frequencies. Furthermore, their non-linear properties make them interesting for neuromorphic computing. In this work, we are interested in determining the non-linear phenomena involved when multiple spin-wave modes are excited in a confined magnetic system, as well as ways to control and model these non-linear interactions. We use frequency multiplexing to parametrically excite two modes simultaneously and probe their mutual nonlinear frequency shift of the two modes, the detuning between the excitation frequencies and twice the resonance frequencies of the modes, and the timing of the excitation pulses. These results open up interesting perspectives for nonlinear magnonics and analog spin-wave computing.
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More information :https://www.spintec.fr/seminar-nonlinear-interactions-between-parametrically-excited-spin-wave-modes-in-a-yig-microdisk/​

Videoconference ​: https://univ-grenoble-alpes-fr.zoom.us/j/98769867024​