Dynamics of topological solitons in two-dimensional ferromagnets

TL;DR

This paper investigates the behavior of topological solitons in 2D ferromagnets, combining analytical continuum models with numerical spin dynamics simulations to understand their properties and internal mode excitations.

Contribution

It provides a combined analytical and numerical study of topological solitons in 2D ferromagnets, highlighting internal mode excitation effects.

Findings

Internal mode excitation causes orbital motion of solitons

Analytical continuum and numerical discrete models agree on soliton dynamics

Simulations confirm internal mode-induced orbital behavior

Abstract

Dynamical topological solitons are studied in classical two-dimensional Heisenberg easy-axis ferromagnets. The properties of such solitons are treated both analytically in the continuum limit and numerically by spin dynamics simulations of the discrete system. Excitation of internal mode causes orbital motion. This is confirmed by simulations.