Field-free switching of perpendicular magnetic elements by using two orthogonal sub nanosecond spin orbit torque pulses

2024/03/29 by Dieter Suess, Suess, Dieter, Claas Abert +7 · 1 citation
Engineering · Physics and Astronomy · #FOS: Physical sciences #Magnetic confinement fusion research #Magnetic properties of thin films #Magneto-Optical Properties and Applications #Materials Science (cond-mat.mtrl-sci) #Mesoscale and Nanoscale Physics (cond-mat.mes-hall)

paper · pdf · doi:10.48550/arxiv.2403.20235

openalex publication_date 2024/03/29 · openalex created_date 2024/04/02 · openalex updated_date 2026/07/28

Abstract

We propose a field-free switching mechanism that utilizes two spatially orthogonal spin-orbit torque (SOT) currents. Initially applied simultaneously, one of the currents is subsequently switched off. The superposition of these two currents results in an in-plane magnetization, which is not orthogonal to the remaining SOT current after the second one is deactivated. This symmetry-breaking procedure leads to reproducible and rapid switching, with field pulse durations as short as 0.25 nanoseconds.

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• SOT Enabled 3D Magnetic Field Sensor with Low Offset and High Sensitivity

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