Electric-Field Control of Spin-Orbit Torques in Perpendicularly Magnetized W/CoFeB/MgO Films
Filianina M, Hanke JP, Lee K, Han DS, Jaiswal S, Rajan A, Jakob G, Mokrousov Y, Klaeui M (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 124
Article Number: 21770117701
Journal Issue: 21
DOI: 10.1103/PhysRevLett.124.217701
Abstract
Controlling magnetism by electric fields offers a highly attractive perspective for designing future generations of energy-efficient information technologies. Here, we demonstrate that the magnitude of current-induced spin-orbit torques in thin perpendicularly magnetized CoFeB films can be tuned and even increased by electric-field generated piezoelectric strain. Using theoretical calculations, we uncover that the subtle interplay of spin-orbit coupling, crystal symmetry, and orbital polarization is at the core of the observed strain dependence of spin-orbit torques. Our results open a path to integrating two energy efficient spin manipulation approaches, the electric-field-induced strain and the current-induced magnetization switching, thereby enabling novel device concepts.
Involved external institutions
Germany (DE)How to cite
APA:
Filianina, M., Hanke, J.-P., Lee, K., Han, D.-S., Jaiswal, S., Rajan, A.,... Klaeui, M. (2020). Electric-Field Control of Spin-Orbit Torques in Perpendicularly Magnetized W/CoFeB/MgO Films. Physical Review Letters, 124(21). https://doi.org/10.1103/PhysRevLett.124.217701
MLA:
Filianina, Mariia, et al. "Electric-Field Control of Spin-Orbit Torques in Perpendicularly Magnetized W/CoFeB/MgO Films." Physical Review Letters 124.21 (2020).
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