Magnetic texture based magnonics

TL;DR

This paper reviews how magnetic textures influence magnon behavior, highlighting recent theoretical and experimental advances, and discusses potential applications in low-energy information processing.

Contribution

It introduces the theoretical framework of magnons on magnetic textures and reviews recent experimental progress in manipulating magnons via these textures.

Findings

Magnetic textures like Skyrmions and domain walls interact with magnons.

Magnons can be manipulated through magnetic textures for information processing.

The interplay offers potential for low-energy magnonic devices.

Abstract

The spontaneous magnetic orders arising in ferro-, ferri- and antiferromagnets stem from various magnetic interactions. Depending on the interplay and competition among the Heisenberg exchange interaction, Dzyaloshinskii-Moriya exchange interaction, magnetic dipolar interaction and crystal anisotropies, a great variety of magnetic textures may be stabilized, such as magnetic domain walls, vortices, Skyrmions and spiral helical structures. While each of these spin textures responds to external forces in a specific manner with characteristic resonance frequencies, they also interact with magnons, the fundamental collective excitation of the magnetic order, which can propagate in magnetic materials free of charge transport and therefore with low energy dissipation. Recent theories and experiments found that the interplay between spin waves and magnetic textures is particularly interesting and rich in physics. In this review, we introduce and discuss the theoretical framework of magnons living on a magnetic texture background, as well as recent experimental progress in the manipulation of magnons via magnetic textures. The flexibility and reconfigurability of magnetic textures are discussed regarding the potential for applications in information processing schemes based on magnons.