Nano-mechanical magnetization reversal

TL;DR

This paper demonstrates that magnetization reversal in thin magnetic films can be significantly accelerated and achieved through mechanical actuation by exploiting magnetomechanical coupling at resonance frequencies.

Contribution

It introduces a theoretical framework showing how mechanical vibrations can induce and speed up magnetization switching in ferromagnetic thin films.

Findings

Magnetization switching can be accelerated via lattice vibrations.

Mechanical actuation can induce magnetization reversal.

Resonance frequencies enhance magnetomechanical effects.

Abstract

The dynamics of the ferromagnetic order parameter in thin magnetic films is strongly affected by the magnetomechanical coupling at certain resonance frequencies. By solving the equation of motion of the coupled mechanical and magnetic degrees of freedom we show that the magnetic-field induced magnetization switching can be strongly accelerated by the lattice and illustrate the possibility of magnetization reversal by mechanical actuation.