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

AuthorsCosta Krämer, José Luis ; Martín, José Ignacio ; Menéndez, José Luis ; Cebollada, Alfonso ; Anguita, José Virgilio ; Briones Fernández-Pola, Fernando ; Vicent, J. L.
Magnetic epitaxial layers
Magnetic domains
Ferromagnetic materials
Issue Date22-May-2000
PublisherAmerican Institute of Physics
CitationApplied Physics Letters 76(21): 3091 (2000)
AbstractThe 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.
Description3 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:(IMN-CNM) Artículos
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