Chiral Magnonic Resonators: Rediscovering the Basic Magnetic Chirality in Magnonics

TL;DR

This paper explores chiral magnonic resonators as a means to control and utilize coherent spin waves at the nanoscale, proposing their potential for advanced magnonic devices and architectures.

Contribution

It introduces the concept of chiral magnonic resonators and discusses their application in constructing various magnonic devices and exploring underlying physics.

Findings

Chiral coupling enables control of spin waves in magnonic media.

Potential for device applications like logic gates and neural networks.

Framework for multi-dimensional magnonic architectures.

Abstract

The outlook for producing useful practical devices within the paradigm of magnonics rests on our ability to emit, control and detect coherent exchange spin waves on the nanoscale. Here, we argue that all these key functionalities can be delivered by chiral magnonic resonators - soft magnetic elements chirally coupled, via magneto-dipole interaction, to magnonic media nearby. Starting from the basic principles of chiral coupling, we outline how they could be used to construct devices and explore underpinning physics, ranging from basic logic gates to field programmable gate arrays, in-memory computing, and artificial neural networks, and extending from one- to two- and three-dimensional architectures.