Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/88036
Type: Artigo de periódico
Title: Spin Orientation In An Ultrathin Coo/ptfe Double-layer With Perpendicular Exchange Coupling
Author: Lamirand A.D.
Soares M.M.
Ramos A.Y.
Tolentino H.C.N.
De Santis M.
Cezar J.C.
de Siervo A.
Abstract: We studied by soft X-ray absorption spectroscopy the magnetization axis in a 4 nm thin CoO (111) layer exchange-coupled to an ultra thin L10 PtFe layer with perpendicular magnetic anisotropy. The angular dependence of the linear magnetic dichroism at 10 K and the relative variations of the spectral features provide a full description of the spin orientation in this antiferromagnetic layer. The spins are found in the film plane, pointing along the 110 direction. This results is discussed in relation to the film strain and the preferential occupation of t2g orbitals. The strong orthogonal coupling between Co and Fe spins should be at the origin of the robustness of the exchange bias effect found in this bilayer system. © 2014 Elsevier B.V. All rights reserved.
Editor: 
Rights: fechado
Identifier DOI: 10.1016/j.jmmm.2014.02.039
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-84894746959&partnerID=40&md5=d8deac9e1642034191ccf4ae0525428f
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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