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Title

Continuously graded anisotropy in single (Fe53Pt47)100−xCux films

AuthorsNogués, Josep ; Åkerman, Johan
Issue Date2010
PublisherAmerican Institute of Physics
CitationApplied Physics Letters 97(18): 182504 (2010)
AbstractWe report on continuously graded anisotropy. During deposition, a compositional gradient is achieved by varying the Cu concentration from Cu-rich (Fe53Pt47)70Cu30 to Cu-free Fe53Pt47. The anisotropy gradient is then realized after annealing using the composition dependence of the low-anisotropy (A1) to high-anisotropy (L10) ordering temperature. The critical role of the annealing temperature on the resultant anisotropy gradient is investigated. Magnetic measurements support the creation of an anisotropy gradient in properly annealed films which exhibit both a reduced coercivity and moderate thermal stability. These results demonstrate that an anisotropy gradient can be realized, and tailored, in single continuous films without the need for multilayers.
Description3 páginas, 3 figuras.-- et al.
Publisher version (URL)http://dx.doi.org/10.1063/1.3505521
URIhttp://hdl.handle.net/10261/44535
DOI10.1063/1.3505521
ISSN0003-6951
E-ISSN1077-3118
Appears in Collections:(CIN2) Artículos
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