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

Dieter Suess; Claas Abert; Sebastian Zeilinger; Florian Bruckner; Sabri Koraltan

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arXiv · 2403.20235

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

Dieter Suess·Claas Abert·Sebastian Zeilinger·Florian Bruckner·Sabri Koraltan

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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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Dieter Suess, Claas Abert, Sebastian Zeilinger, Florian Bruckner, Sabri Koraltan. 2024-03-29. Field-free switching of perpendicular magnetic elements by using two orthogonal sub nanosecond spin orbit torque pulses. https://arxiv.org/abs/2403.20235

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