Efficient Magnetization Reversal with Noisy Currents

TL;DR

This paper demonstrates that introducing a controlled level of electronic noise can significantly speed up magnetization reversal in spin valves, reducing power consumption and switching time.

Contribution

It introduces a novel approach of using external current noise to accelerate magnetization switching in spin valves, supported by stochastic equations of motion analysis.

Findings

Switching time is drastically reduced with modest noise levels.

Power consumption for switching is significantly lowered.

External noise effectively accelerates magnetization reversal.

Abstract

We propose to accelerate reversal of the ferromagnetic order parameter in spin valves by electronic noise. By solving the stochastic equations of motion we show that the current-induced magnetization switching time is drastically reduced by a modest level of externally generated current (voltage) noise. This also leads to a significantly lower power consumption for the switching process.