Creation and Amplification of Electro-Magnon Solitons by Electric Field in Nanostructured Multiferroics

TL;DR

This paper presents a theoretical framework for creating and amplifying electro-magnon solitons in nanostructured multiferroics using electric fields, highlighting potential for controlling magnetic pulses via electric stimuli.

Contribution

It introduces a novel theoretical model describing electro-magnon solitons in coupled ferroelectric-ferromagnetic heterostructures, focusing on their creation and amplification through electric fields.

Findings

Magnetic-like envelope solitons can be generated by alternating electric fields.

Electric fields near the band edge can amplify magnetic pulses.

Theoretical description of coupled electric and magnetic wave modulation.

Abstract

We develop a theoretical description of electro-magnon solitons in a coupled ferroelectric-ferromagnetic heterostructure. The solitons are considered in the weakly nonlinear limit as a modulation of plane waves corresponding to two, electric- and magnetic-like branches in the spectrum. Emphasis is put on magnetic-like envelope solitons that can be created by an alternating electric field. It is shown also that the magnetic pulses can be amplified by an electric field with a frequency close to the band edge of the magnetic branch.