Layer resolved magnetic domain imaging of epitaxial heterostructures in large applied magnetic fields
Applied Physics Letters
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Zohar, S., Choi, Y., Love, D., Mansell, R., Barnes, C., Keavney, D., & Rosenberg, R. (2015). Layer resolved magnetic domain imaging of epitaxial heterostructures in large applied magnetic fields. Applied Physics Letters, 106 (072408)https://doi.org/10.1063/1.4913359
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.
RM acknowledges funding from the European Community under the Seventh Framework Program Contract No. 247368: 3SPIN. DL acknowledges funding from the EPSRC. The work performed at the Advanced Photon Source was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-06CH11357.
European Research Council (247368)
External DOI: https://doi.org/10.1063/1.4913359
This record's URL: https://www.repository.cam.ac.uk/handle/1810/248081
Attribution-NonCommercial 2.0 UK: England & Wales
Licence URL: http://creativecommons.org/licenses/by-nc/2.0/uk/
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