Ultra-Fast Perpendicular Spin–Orbit Torque MRAM

Murat Cubukcu,Olivier Boulle,Nikolaï Mikuszeit, Claire Hamelin,Thomas Brächer, Nathalie Lamard,Marie-Claire Cyrille,Liliana Buda-Prejbeanu,Kevin Garello,Ioan Mihai Miron,O. Klein,G. de Loubens,V. V. Naletov,Juergen Langer,Berthold Ocker,Pietro Gambardella,Gilles Gaudin

IEEE Transactions on Magnetics（2018）

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摘要

We demonstrate ultra-fast (down to 400 ps) bipolar magnetization switching of a three-terminal perpendicular Ta/FeCoB/MgO/FeCoB magnetic tunnel junction. The critical current density rises significantly as the current pulse shortens below 10 ns, which translates into a minimum in the write energy in the nanosecond range. Our results show that spin-orbit torque-MRAM allows for fast and low-power wr...

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关键词

Switches,Magnetization,Magnetic tunneling,Tunneling magnetoresistance,Torque,Current measurement,Pulse measurements

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