Journal
APPLIED PHYSICS LETTERS
Volume 114, Issue 4, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.5084095
Keywords
-
Categories
Funding
- ImPACT Program of CSTI
- JSPS KAKENHI [17H06511/18KK0143]
- JST-OPERA
- Core-to-Core Program of JSPS
- Cooperative Research Projects of RIEC
- GP-Spin
- DIARE of Tohoku University
Ask authors/readers for more resources
We investigate the effect of the Dzyaloshinskii-Moriya interaction (DMI) on domain wall (DW) configurations in W/(Co)FeB/MgO structures with varying ferromagnet (FM) thicknesses. The DW chirality and effective DMI field are evaluated from field-induced DW motion. The results indicate a reversal of DW chirality with the FM thickness irrespective of the FM material (CoFeB or FeB) and the crystallographic phase of W (alpha or beta phase). The observed change in the magnitude of the DMI field is supported by an additional measurement of spin-orbit torque assisted magnetization switching under in-plane magnetic fields. The present findings offer previously unknown insights into the origin of interfacial DMI and indicate the co-existence of multiple factors governing DW chirality in systems with broken inversion symmetry. Published under license by AIP Publishing.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available