Precessing ball solitons as dissipative structures during a phase transition in a ferromagnet

TL;DR

This paper analyzes precessing ball solitons as dissipative structures that form during a first-order phase transition in ferromagnets under specific magnetic field conditions, highlighting their unique frequency-dependent characteristics.

Contribution

It introduces the concept of equilibrium precessing ball solitons as dissipative structures with properties determined solely by the periodic field's frequency.

Findings

Equilibrium PBS's are uniquely determined by the periodic field frequency.

Only PBS's with the specific frequency of the periodic field are possible.

Equilibrium PBS's can arise in a metastable state as dissipative structures.

Abstract

Precessing ball solitons (PBS) in a ferromagnet during the first order phase transition induced by a magnetic field directed along the axis of anisotropy, while the action of the periodic field perpendicular to the main magnetic field, have been analyzed. Under this condition, the characteristics of arising equilibrium PBS's are uniquely determined by the frequency of the periodic field, but the solitons with other frequencies are impossible. It is shown that the equilibrium PBS's are essentially the "dissipative structures" that can arise in a metastable state.