TITLE

Asymmetric Pt/Co/Pt-stack induced sign-control of current-induced magnetic domain-wall creep

AUTHOR(S)
Lavrijsen, R.; Haazen, P. P. J.; Murè, E.; Franken, J. H.; Kohlhepp, J. T.; Swagten, H. J. M.; Koopmans, B.
PUB. DATE
June 2012
SOURCE
Applied Physics Letters;6/25/2012, Vol. 100 Issue 26, p262408
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report experimentally obtained magnetic domain wall (DW) velocities of current-assisted field-driven DW creep in perpendicularly magnetized Pt/Co/Pt. We have intentionally introduced an asymmetry in the stacks by using different thicknesses of the two Pt layers sandwiching the Co layer. Thereby, it is tested whether conflicting current-induced domain wall motion (CI-DWM) results may be intrinsically related to the basic layout and growth. We sketch a scenario which could be at the basis of contradicting reports in literature where the direction of CI-DWM conflicts with spin-torque-transfer theory, allowing the sign of the current-induced effect on DW motion to be tuned.
ACCESSION #
77442738

 

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