Magnetic anisotropy FMR studies of Co films grown between Mo or Au buffer and Mo or Au overlayers

The magnetic in-plane anisotropy as a dependence on Co film thickness in X/Co/X (where X=Mo or Au) sandwich structures were investigated by the ferromagnetic resonance method in the Co thickness range where magnetization is mainly in-plane oriented. The in-plane anisotropy was observed in all Au/Co/...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2007-03, Vol.310 (2), p.2198-2200
Main Authors: Gieniusz, R., Baczewski, L.T., Kurant, Z., Maziewski, A., Wawro, A.
Format: Article
Language:English
Subjects:
Anisotropy
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances
spin-wave resonance
FMR
Magnetic properties and materials
Magnetic resonances and relaxations in condensed matter, mössbauer effect
Physics
Ultrathin film
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Summary:The magnetic in-plane anisotropy as a dependence on Co film thickness in X/Co/X (where X=Mo or Au) sandwich structures were investigated by the ferromagnetic resonance method in the Co thickness range where magnetization is mainly in-plane oriented. The in-plane anisotropy was observed in all Au/Co/Au, Au/Co/Mo, Mo/Co/Au and Mo/Co/Mo samples. Large (up to 1.5 kOe) in-plane anisotropy field was found for Mo/Co/Au sample which is related with anisotropic strain distribution during growth of Co(0 0 0 1) on Mo(1 1 0) buffer layer. On the other hand, Mo as the overlayer has much smaller contribution to the in-plane anisotropy, which might be connected with pseudomorphic growth of Mo on Co with C3 symmetry.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2006.10.758