Hopfions in screw chiral magnets

TL;DR

This paper introduces a new approach using symmetry-transforming magnetic models to generate and stabilize complex 3D magnetic textures like Hopfions in screw chiral magnets, revealing unique physical properties and dynamical behaviors.

Contribution

It proposes a novel framework for creating and stabilizing 3D magnetic solitons, including Hopfions, through symmetry transformations in magnetic models.

Findings

Prediction of stable magnetic Hopfions in screw chiral magnets

Identification of unconventional Goldstone modes in these textures

Establishment of symmetry transformations as a tool for discovering new magnetic solitons

Abstract

Three-dimensional topological spin textures have attracted growing interest due to their rich geometry and potential for functional magnetic phenomena. In this work, we propose the concept of symmetry-transforming magnetic models as a novel route to generate and stabilize complex three-dimensional textures in an arbitrary magnetic background. Using this framework, we predict a screw chiral magnet model that stabilizes magnetic Hopfions and other three-dimensional magnetic textures within a ferromagnetic background. We show that the resulting solitons display distinctive physical properties, including unconventional Goldstone modes. Our results establish continuous symmetry transformations as a general strategy for uncovering new classes of magnetic solitons with unique dynamical signatures.