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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2008

Influence of interface exchange coupling in perpendicular anisotropy [Pt/Co]50/TbFe bilayers

Résumé

We present the magnetization evolution of perpendicular anisotropy TbFe and ͓Co/ Pt͔ 50 thin films either in direct contact resulting in antiferromagnetic interfacial coupling or separated by a thick decoupling Pt layer. Magnetometry and x-ray magnetic circular dichroism spectroscopy determine the spatially averaged magnetic properties. Resonant magnetic x-ray small-angle scattering and magnetic soft x-ray transmission microscopy probed the domain configurations and correlations in the reversal processes. While the Co/Pt multilayer reverses by domain propagation, the TbFe magnetization reversal was dominated either by coherent magnetiza-tion reversal processes or by lateral domain formation depending on the interface exchange coupling. In the presence of lateral domains, dipolar field induced domain replication phenomena were observed.
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hal-01345254 , version 1 (13-07-2016)

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S Mangin, Thomas Hauet, P Fischer, D.H. Kim, J.B. Kortright, et al.. Influence of interface exchange coupling in perpendicular anisotropy [Pt/Co]50/TbFe bilayers. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2008, ⟨10.1103/PhysRevB.78.024424⟩. ⟨hal-01345254⟩
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