Anatomy of Thermally Interplayed Spin-Orbit Torque Driven Antiferromagnetic Switching

TL;DR

This paper investigates how thermal effects influence spin-orbit torque driven antiferromagnetic switching in magnetic tunnel junctions, providing experimental insights and a new theoretical model to clarify the underlying mechanisms.

Contribution

It introduces a novel AFM switching model incorporating thermal fluctuations, experimentally validates it, and advances understanding of current-induced AFM switching in spintronics.

Findings

Thermal effects significantly impact AFM switching behavior.

A new model with Langevin random field explains experimental results.

Potential for improved spintronic device control.

Abstract

Current-induced antiferromagnetic (AFM) switching remains critical in spintronics, yet the interplay between thermal effects and spin torques still lacks clear clarification. Here we experimentally investigate the thermally interplayed spin-orbit torque induced AFM switching in magnetic tunnel junctions via pulse-width dependent reversal and time-resolved measurements. By introducing the Langevin random field into the AFM precession equation, we establish a novel AFM switching model that anatomically explains the experimental observations. Our findings elucidate the currentinduced AFM switching mechanism and offer significant promise for advancements in spintronics.