SKM 2023 – scientific programme
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MA: Fachverband Magnetismus
MA 16: Magnonics
MA 16.6: Talk
Tuesday, March 28, 2023, 11:00–11:15, HSZ 403
Simultaneous multitone microwave emission by DC-driven spintronic nano-element — •A. Hamadeh1, D. Slobodianiuk2,3, R. Moukhader4, G. Melkov2, V. Borynskyi3, M. Mohseni1, G. Finocchio4, V. Lomakin5, R. Verba3, G. de Loubens6, P. Pirro1, and O. Klein7 — 1Fachbereich Physik and Landesforschungszentrum OPTIMAS, Technische Universität Kaiserslautern, Kaiserslautern, Germany — 2Taras Shevchenko National University of Kyiv, Kyiv 01601, Ukraine — 3Institute of Magnetism, Kyiv 03142, Ukraine — 4Dept. Mathematical and Computer Sciences, Physical Sciences and Earth Sciences, University of Messina, 98166 Messina, Italy — 5Center for Magnetic Recording Research, University of California San Diego, La Jolla, California 92093-0401, USA — 6SPEC, CEA, CNRS, Université Paris-Saclay, 91191 Gif-sur-Yvette, France — 7Univ. Grenoble Alpes, CEA, CNRS, Grenoble INP, INAC-Spintec, 38054 Grenoble, France
The generation of microwave radiation by DC-driven spintronic elements is generally considered a process that generates only one frequency at a time. In our study however, we can show by means of experimental data, micromagnetic simulations, and an analytical model that several frequencies can be generated simultaneously due to non-linear magnon coupling. This discovery opens the way for entirely new multiplexing techniques and synchronization mechanisms that can be used for communication and neuromorphic computing.