A spin dynamics approach to solitonics

TL;DR

This paper investigates topologically protected magnetic solitons using numerical and analytical methods, aiming to advance solitonics and skyrmionics for potential applications in information storage and logic operations.

Contribution

It introduces a detailed analysis of magnetic solitons in the context of solitonics, emphasizing their creation, manipulation, and potential technological applications.

Findings

Magnetic solitons can be topologically protected and manipulated.

Numerical and analytical tools effectively describe soliton behavior.

Potential for solitons to be used in logical operations and data storage.

Abstract

It is spatial dispersion which is exclusively responsible for the emergence of exchange interaction and magnetic ordering. In contrast, magneto-crystalline anisotropy present in any realistic material brings in a certain non-linearity to the equation of motion. Unlike homogeneous ferromagnetic ordering a variety of non-collinear ground state configurations emerge as a result of competition among exchange, anisotropy, and dipole-dipole interaction. These particle-like states, e.g. magnetic soliton, skyrmion, domain wall, form a spatially localised clot of magnetic energy. In this paper we explore topologically protected magnetic solitons that might potentially be applied for logical operations and/or information storage in the rapidly advancing filed of solitonics (and skyrmionics). An ability to easily create, address, and manipulate such structures is among the prerequisite forming a basis of -onics technology, and is investigated in detail here using numerical and analytical tools.