TY  - JOUR
AU  - Filianina, Mariia
AU  - Hanke, Jan-Philipp
AU  - Lee, Kyujoon
AU  - Han, Dong-Soo
AU  - Jaiswal, Samridh
AU  - Rajan, Adithya
AU  - Jakob, Gerhard
AU  - Mokrousov, Yuriy
AU  - Kläui, Mathias
TI  - Electric-Field Control of Spin-Orbit Torques in Perpendicularly Magnetized W / CoFeB / MgO Films
JO  - Physical review letters
VL  - 124
IS  - 21
SN  - 1079-7114
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2021-00084
SP  - 217701
PY  - 2020
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - 32530662
UR  - <Go to ISI:>//WOS:000535467000010
DO  - DOI:10.1103/PhysRevLett.124.217701
UR  - https://juser.fz-juelich.de/record/889161
ER  -