Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 5, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3078286
Keywords
coercive force; exchange interactions (electron); interface magnetism; iron; iron alloys; magnetic anisotropy; magnetic particles; magnetic recording; magnetic thin films; nanocomposites; nanoparticles; platinum alloys; soft magnetic materials
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Exchange-coupled ledge-type L1(0)-FePt/Fe composite systems with out-of-plane anisotropy composed of nanostructured L1(0)-FePt films covered by Fe are prepared to analyze the influence of the soft magnetic layer thickness on the magnetic properties. By the soft magnetic layer thickness d(Fe) the coercivity can be tailored according to a 1/d(Fe)(1.38) relation. This result can be used to realize recording media with coercivities in the range which are afforded by conventional write heads.
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