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Open Access item Epitaxial Fe (001) micro tiling: Size and interaction effects

Authors:Costa Krämer, José Luis
Martín, J. I.
Menéndez, José Luis
Cebollada, Alfonso
Anguita, José Virgilio
Briones Fernández-Pola, Fernando
Vicent, J. L.
Keywords:Magnetisation, Magnetic epitaxial layers, Magnetic domains, Demagnetisation, Nucleation, Ferromagnetic materials
Issue Date:22-May-2000
Publisher:American Institute of Physics
Citation:Applied Physics Letters 76(21): 3091 (2000)
Abstract:The magnetic properties of 200 Å epitaxial Fe (001)/MgO (001) tiling are studied as a function of tile size and separation. For edge sizes above ~3 µm, the individual tiles maintain the single domain behavior while below ~3 µm the tiles break into domains due to demagnetizing effects. In addition, below an inter tile separation threshold of about 0.9 µm, a single tile magnetization switch provokes a reversal cascade in all the tiles; while, above this threshold, the individual tile's magnetization switches independently. In this last case, we have experimental access to the distribution of nucleation sites. Thus, we have found a clear signature of the magnetic interaction between patterned epitaxial micro tiles with in-plane magnetization.
Description:3 pages, 4 figures.-- PACS: 75.70.Ak; 75.50.Bb; 75.60.Ej; 75.70.Kw
Publisher version (URL):http://dx.doi.org/10.1063/1.126533
Appears in Collections:(IMM-CNM) Artículos

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