Lower current-driven exchange switching threshold in noncollinear magnetic junctions under high spin injection

TL;DR

This paper demonstrates that in magnetic junctions with high spin injection, noncollinear layer axes can significantly reduce the current threshold needed for exchange magnetization switching, enhancing device efficiency.

Contribution

It reveals that noncollinear configurations in magnetic junctions can halve the switching threshold under high spin injection conditions, a novel insight for spintronic device optimization.

Findings

Exchange magnetization reversal threshold is reduced up to two times.

Noncollinear layer axes facilitate easier switching.

High spin injection enhances switching efficiency.

Abstract

Current-induced switching is considered in a magnetic junction. The junction includes pinned and free ferromagnetic layers which work in the regime of the high spin injection. It is shown that in such a regime the exchange magnetization reversal threshold can be lowered up to two times when the axes of the layers are noncollinear.