Titel
A nonlinear magnonic nano-ring resonator
Abbass Hamadeh
Fachbereich Physik and Landesforschungszentrum OPTIMAS, Technische Universität Kaiserslautern
Roman Verba
Institute of Magnetism
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Abstract
The field of magnonics, which aims at using spin waves as carriers in data-processing devices, has attracted increasing interest in recent years. We present and study micromagnetically a nonlinear nanoscale magnonic ring resonator device for enabling implementations of magnonic logic gates and neuromorphic magnonic circuits. In the linear regime, this device efficiently suppresses spin-wave transmission using the phenomenon of critical resonant coupling, thus exhibiting the behavior of a notch filter. By increasing the spin-wave input power, the resonance frequency is shifted, leading to transmission curves, depending on the frequency, reminiscent of the activation functions of neurons, or showing the characteristics of a power limiter. An analytical theory is developed to describe the transmission curve of magnonic ring resonators in the linear and nonlinear regimes, and is validated by a comprehensive micromagnetic study. The proposed magnonic ring resonator provides a multi-functional nonlinear building block for unconventional magnonic circuits.
Stichwort
Applied physicsMagnetic properties and materialsNanoscale devices
Objekt-Typ
Sprache
Englisch [eng]
Persistent identifier
Erschienen in
Titel
npj Computational Materials
Band
6
ISSN
2057-3960
Erscheinungsdatum
2020
Publication
Springer Science and Business Media LLC
Projekt
Kod / Identifikator
678309
Fördergeber
Erscheinungsdatum
2020
Zugänglichkeit
Rechte
Rechteangabe
© The Author(s) 2020, corrected publication 2021
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