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Field-free spin–orbit torque-induced magnetization switching in a miscut-substrate driven slant-perpendicular magnetic anisotropy system.
- Source :
- Applied Physics Letters; 8/7/2023, Vol. 123 Issue 6, p1-6, 6p
- Publication Year :
- 2023
-
Abstract
- In a perpendicular magnetic anisotropy (PMA) system, spin–orbit torque (SOT)-induced magnetization switching shows promise in terms of high speed and stability, but additional in-plane directional symmetry breaking is necessary to achieve deterministic switching. Here, we observed all-electric magnetization switching by SOT in a conventional heavy metal/ferromagnetic structure deposited on a 3.25° miscut sapphire substrate. To better understand the origin of field-free switching, we conducted azimuthal angle-dependent PMA analysis and found that the magnetic anisotropy is slightly tilted in the direction of the miscut step. Despite a few degrees of tilting angle (<3°), we also confirmed that a slant PMA is the origin of the field-free switching by micromagnetic simulations. [ABSTRACT FROM AUTHOR]
- Subjects :
- MAGNETIC anisotropy
PERPENDICULAR magnetic anisotropy
MAGNETIZATION
HEAVY metals
Subjects
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 123
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 169922165
- Full Text :
- https://doi.org/10.1063/5.0158394