Electric-Field Control of Spin-Orbit Torques in Perpendicularly Magnetized W/CoFeB/MgO Films

Authors
Filianina, MariiaHanke, Jan-PhilippLee, KyujoonHan, Dong-SooJaiswal, SamridhRajan, AdithyaJakob, GerhardMokrousov, YuriyKlaeui, Mathias
Issue Date
2020-05-26
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW LETTERS, v.124, no.21
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.
Keywords
Spintronics; E-control; Spin-orbit torque
ISSN
0031-9007
URI
https://pubs.kist.re.kr/handle/201004/118608
DOI
10.1103/PhysRevLett.124.217701
Appears in Collections:
KIST Article > 2020
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE