SKM 2023 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 16: Magnonics

MA 16.6: Vortrag

Dienstag, 28. März 2023, 11:00–11:15, HSZ 403

Simultaneous multitone microwave emission by DC-driven spintronic nano-element — •A. Hamadeh¹, D. Slobodianiuk^2,3, 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.