Document Detail


Magnetic properties of exchange biased and of unbiased oxide/permalloy thin layers: a ferromagnetic resonance and Brillouin scattering study.
MedLine Citation:
PMID:  21386581     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Microstrip ferromagnetic resonance and Brillouin scattering are used to provide a comparative determination of the magnetic parameters of thin permalloy layers interfaced with a non-magnetic (Al(2)O(3)) or with an antiferromagnetic oxide (NiO). It results from our microstructural study that no preferential texture is favoured in the observed polycrystalline sublayers. It is shown that the perpendicular anisotropy can be monitored using an interfacial surface energy term which is practically independent of the nature of the interface. In the interval of thicknesses investigated (5-25 nm) the saturation magnetization does not significantly differ from the reported one in bulk permalloy. In-plane uniaxial anisotropy and exchange bias anisotropy are also derived from the study of the dynamic magnetic excitations and compared with our independent evaluations using conventional magnetometry.
Authors:
F Zighem; Y Roussigné; S-M Chérif; P Moch; J Ben Youssef; F Paumier
Publication Detail:
Type:  Journal Article     Date:  2010-09-20
Journal Detail:
Title:  Journal of physics. Condensed matter : an Institute of Physics journal     Volume:  22     ISSN:  0953-8984     ISO Abbreviation:  J Phys Condens Matter     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2011-03-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101165248     Medline TA:  J Phys Condens Matter     Country:  England    
Other Details:
Languages:  eng     Pagination:  406001     Citation Subset:  IM    
Affiliation:
Laboratoire des Propriétés Mécaniques et Thermodynamiques des Matériaux, CNRS UPR 9001, Université Paris Nord, 93430 Villetaneuse, France.
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