TITLE

Layer resolved magnetic domain imaging of epitaxial heterostructures in large applied magnetic fields

AUTHOR(S)
Zohar, S.; Choi, Y.; Love, D. M.; Mansell, R.; Barnes, C. H. W.; Keavney, D. J.; Rosenberg, R. A.
PUB. DATE
February 2015
SOURCE
Applied Physics Letters;2/11/2015, Vol. 106 Issue 7, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We use X-ray Excited Luminescence Microscopy to investigate the elemental and layer resolved magnetic reversal in an interlayer exchange coupled (IEC) epitaxial Fe/Cr wedge/Co heterostructure. The transition from strongly coupled parallel Co-Fe reversal for Cr thickness tCr < 0.34 nm to weakly coupled layer independent reversal for tCr > 1.5 nm is punctuated at 0.34 < tCr < 1.5 nm by a combination of IEC guided domain wall motion and stationary zig zag domain walls. Domain walls nucleated at switching field minima are guided by IEC spatial gradients and collapse at switching field maxima.
ACCESSION #
101136913

 

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