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Ultra-Fast Perpendicular Spin-Orbit Torque MRAM

Cubukcu, M; Boulle, O; Mikuszeit, N; Hamelin, C; Bracher, T; Lamard, N; Cyrille, M-C; ... Gaudin, G; + view all (2018) Ultra-Fast Perpendicular Spin-Orbit Torque MRAM. IEEE Transactions on Magnetics , 54 (4) , Article 9300204. 10.1109/TMAG.2017.2772185. Green open access

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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 write operations, which makes it promising for non-volatile cache memory applications.

Type: Article
Title: Ultra-Fast Perpendicular Spin-Orbit Torque MRAM
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/TMAG.2017.2772185
Publisher version: https://doi.org/10.1109/TMAG.2017.2772185
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Switches, Magnetization, Magnetic tunneling, Tunneling magnetoresistance, Torque, Current measurement, Pulse measurements
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/10064562
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