Reducing the critical switching current in nanoscale spin valves

TL;DR

This paper demonstrates that by strategically distributing resistances within nanoscale spin valves, the critical switching current can be significantly reduced, and it predicts a new precessional state through simulations.

Contribution

It introduces a method to lower the switching current in spin valves by resistance distribution and predicts a novel precessional state.

Findings

Critical switching current reduced by an order of magnitude.

Simulation of full switching curves.

Prediction of a new precessional state.

Abstract

The current induced magnetization reversal in nanoscale spin valves is a potential alternative to magnetic field switching in magnetic memory devices. We show that the critical switching current can be decreased by an order of magnitude by strategically distributing the resistances in the magnetically active region of the spin valve. In addition, we simulate full switching curves and predict a new precessional state.