Towards all-electrical control of domain-wall logic

B. B. Vermeulen; E. Raymenants; Y. Canvel; J. Chatterjee; B. Sorée; K. Wostyn; S. Couet; K. Temst; V. D. Nguyen

doi:10.1117/12.3027589

4 October 2024 Towards all-electrical control of domain-wall logic

B. B. Vermeulen, E. Raymenants, Y. Canvel, J. Chatterjee, B. Sorée, K. Wostyn, S. Couet, K. Temst, V. D. Nguyen

Proceedings Volume 13119, Spintronics XVII; 131190H (2024) https://doi.org/10.1117/12.3027589
Event: Nanoscience + Engineering, 2024, San Diego, California, United States

Abstract

Domain-wall (DW) logic holds promise for compact and energy-efficient logic circuits. Indeed, fast DW motion driven by spin-orbit torque (SOT) and the Dzyaloshinskii-Moriya interaction (DMI) in magnetic/heavy-metal multilayers led to the experimental demonstration of current-driven DW logic circuits by magnetic imaging. Advancing towards applications, we present DW devices with electrical write/read using a magnetic tunnel junction (MTJ) stack with a hybrid free layer on 300-mm wafers. The first layer provides efficient spin-transfer torque (STT) and high tunneling magnetoresistance (TMR), while the second layer enables fast SOT-driven DW motion. It allows full electrical control of nanoscale DW devices, involving write/read at input/output MTJs and SOT-driven propagation between them. Finally, to alleviate challenges in current-driven DW motion, we present a concept of chirally coupled MTJs through DMI. This enables current-free information processing in compact inverter and minority gates.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

B. B. Vermeulen, E. Raymenants, Y. Canvel, J. Chatterjee, B. Sorée, K. Wostyn, S. Couet, K. Temst, and V. D. Nguyen "Towards all-electrical control of domain-wall logic", Proc. SPIE 13119, Spintronics XVII, 131190H (4 October 2024); https://doi.org/10.1117/12.3027589

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