Expansion and relaxation of magnetic mirror domains in a Pt/Co/Pt/Co/Pt multilayer with antiferromagnetic interlayer coupling

Metaxas, P.J., Stamps, R.L. , Jamet, J.-P., Ferré, J., Baltz, V. and Rodmacq, B. (2011) Expansion and relaxation of magnetic mirror domains in a Pt/Co/Pt/Co/Pt multilayer with antiferromagnetic interlayer coupling. Journal of Physics: Condensed Matter, 24(2), 024212. (doi: 10.1088/0953-8984/24/2/024212)

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Publisher's URL: http://dx.doi.org/10.1088/0953-8984/24/2/024212

Abstract

We detail measurements of field-driven expansion and zero-field relaxation of magnetic mirror domains in antiferromagnetically coupled perpendicularly magnetized ultrathin Co layers. The zero-field stability of aligned ('mirror') domains in such systems results from non-homogeneous dipolar stray fields which exist in the vicinity of the domain walls. During field-driven domain expansion, we evidence a separation of the domain walls which form the mirror domain boundary. However, the walls realign, thereby reforming a mirror domain, if their final separation is below a critical distance at the end of the field pulse. This critical distance marks the point at which the effective net interaction between the walls changes from attractive to repulsive.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Stamps, Professor Robert
Authors: Metaxas, P.J., Stamps, R.L., Jamet, J.-P., Ferré, J., Baltz, V., and Rodmacq, B.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Journal of Physics: Condensed Matter
Journal Abbr.:J. Phys.: Condens. Matter
Publisher:IOP Publishing Ltd
ISSN:0953-8984
ISSN (Online):1361-648X

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