High resolution measurement and modelling of magnetic domain structures in epitaxial FePd (001) L1(0) films with perpendicular magnetisation

Aitchison, P.R., Chapman, J.N., Gehanno, V., Weir, I.S., Scheinfein, M.R., McVitie, S. and Marty, A. (2001) High resolution measurement and modelling of magnetic domain structures in epitaxial FePd (001) L1(0) films with perpendicular magnetisation. Journal of Magnetism and Magnetic Materials, 223(2), 138 -146. (doi:10.1016/S0304-8853(00)00524-2)

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Abstract

Magnetic domain structures in two 50 nm thick chemically- ordered FePd (001) epitaxial films with different perpendicular anisotropies have been studied using Lorentz microscopy. Domain and domain wall structures vary significantly according to the magnitude of the anisotropy. For lower anisotropy films, a stripe domain structure with a period of approximate to 100 nm is formed in which there is a near-continuous variation in orientation of the magnetisation vector. By contrast, in the film with higher anisotropy, a maze-like domain structure is supported. The magnetisation within domains is perpendicular to the film plane and adjacent domains are separated by narrow walls, less than 20 nm wide. Micromagnetic modelling is generally in good quantitative agreement with experimental observations and provides additional information on the domain wall structure.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:McVitie, Dr Stephen and Chapman, Professor John
Authors: Aitchison, P.R., Chapman, J.N., Gehanno, V., Weir, I.S., Scheinfein, M.R., McVitie, S., and Marty, A.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Journal of Magnetism and Magnetic Materials
ISSN:0304-8853

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