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Authors: Filianina, Mariia
Hanke, Jan-Philipp
Lee, Kyujoon
Han, Dong-Soo
Jaiswal, Samridh
Rajan, Adithya
Jakob, Gerhard
Mokrousov, Yuriy
Kläui, Mathias
Title: Electric-field control of spin-orbit torques in perpendicularly magnetized W/CoFeB/MgO films
Online publication date: 20-Oct-2020
Language: english
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.
DDC: 530 Physik
530 Physics
Institution: Johannes Gutenberg-Universität Mainz
Department: FB 08 Physik, Mathematik u. Informatik
Place: Mainz
Version: Accepted version
Publication type: Zeitschriftenaufsatz
Document type specification: Scientific article
License: in Copyright
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Journal: Physical review letters
Pages or article number: 217701-1
Publisher: APS
Publisher place: College Park, Md.
Issue date: 2020
ISSN: 0031-9007
Publisher URL:
Publisher DOI: 10.1103/PhysRevLett.124.217701
Appears in collections:JGU-Publikationen

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