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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2009

Frustration-driven micromagnetic structure in Fe/CoO/Fe thin film layered systems

Résumé

We have investigated the micromagnetic structure of magnetic domains in Fe/CoO/Fe trilayer systems and the magnetization coupling between the iron layers. We observe very small magnetic domains separated by nanometer-sized domain walls in the top Fe layer for a narrow CoO thickness range. Such domains have lateral dimensions as low as 30 nm and present topologies which are very similar to those observed in the top layer of Fe/NiO/Fe trilayers. Both magnetic domain structure and Fe interlayer coupling dramatically change with the CoO thickness. The role of magnetocrystalline anisotropy and magnetic frustrations on the observed phenomenology is discussed.
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hal-00971499 , version 1 (02-04-2014)

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A. Brambilla, P. Sessi, M. Cantoni, Marco Finazzi, Nicolas Rougemaille, et al.. Frustration-driven micromagnetic structure in Fe/CoO/Fe thin film layered systems. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2009, 79 (17), pp.172401. ⟨10.1103/PhysRevB.79.172401⟩. ⟨hal-00971499⟩
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