Chiral breakdown engineered by mesoscale Dzyaloshinskii-Moriya interaction in biaxial magnetic nanotubes

TL;DR

This paper analytically investigates how curvature and Dzyaloshinskii-Moriya interactions in biaxial magnetic nanotubes influence domain wall behavior, enabling control over their dynamics and symmetry-breaking phenomena.

Contribution

It introduces a theoretical framework for understanding and manipulating domain wall dynamics in curved magnetic nanotubes with Dzyaloshinskii-Moriya interactions.

Findings

Geometry-driven interactions control domain wall profiles.

Chirality symmetry breaking occurs due to combined effects.

Control over Walker breakdown field is achieved.

Abstract

Curvilinear geometries in magnetic nanostructures provide a unique platform for exploring the interplay of symmetry, topology, and curvature in magnetization dynamics. In this work, we analytically study the static and dynamic properties of domain walls in biaxial magnetic nanotubes with intrinsic Dzyaloshinskii-Moriya interaction of different symmetries. We show that geometry-driven local and nonlocal interactions govern domain profiles and dynamics, enabling precise control over the wall propagation and Walker breakdown field. Furthermore, the combination of bulk-type Dzyaloshinskii-Moriya interaction and curvature leads to chirality symmetry breaking and chiral breakdown in domain wall motion. These findings offer a framework for tailoring domain wall textures in cylindrical nanotubes, unlocking new functionalities for advanced applications in curvilinear magnonics and data storage technologies.