A nonlinear magnonic nano-ring resonator

Autor(en)

Qi Wang, Abbass Hamadeh, Roman Verba, Vitaliy Lomakin, Morteza Mohseni, Burkard Hillebrands, Andrii V. Chumak, Philipp Pirro

Abstrakt

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.

Organisation(en)

Nanomagnetismus und Magnonik

Externe Organisation(en)

Technische Universität Kaiserslautern, Lebanese University, University of California, San Diego, National Academy of Sciences of Ukraine (NASU)

Journal

npj Computational Materials

Band

6

Anzahl der Seiten

7

DOI

https://doi.org/10.1038/s41524-020-00465-6

Publikationsdatum

12-2020

Peer-reviewed

Ja

ÖFOS 2012

103017 Magnetismus, 210004 Nanomaterialien

Schlagwörter

ASJC Scopus Sachgebiete

Mechanics of Materials, Allgemeine Materialwissenschaften, Computer Science Applications, Modelling and Simulation

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/07d50e86-dc6d-4789-ae3c-b4110ab9d92f