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    X-ray resonant magnetic scattering study of magnetization reversals in a nanoscale spin-valve array

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    lee xray.pdf (646.9Kb)
    Date
    2007-10
    Author
    Lee, Dong Ryeol
    Freeland, John W.
    Choi, Yongseong
    Srajer, George
    Metlushko, Vitali
    Ilic, Bojan
    Publisher
    American Physical Society
    Metadata
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    Abstract
    We present an x-ray resonant magnetic scattering study that uses the periodicity of a patterned array of trilayer (Co/Cu/NiFe) elements to determine not only layer-dependent magnetic hysteresis, but, more importantly, to extract the magnetization reversal in different sections of the picture-frame-shaped structure. Spatially resolved and layer-resolved magnetization measurements have revealed that magnetic switching mechanism is very distinct in different regions of the structure and results from a balancing of the shape anisotropy and strong interlayer dipolar coupling. These results demonstrate how spatially averaged measurements are not sufficient to resolve the nature of the reversal mechanism within the structure.
    Subject
    tunnel-junctions
    exchange scattering
    magnetoresistance
    memory
    Type
    Article
    Date available in INDIGO
    2009-06-18T18:03:07Z
    URI
    http://hdl.handle.net/10027/5591
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    • Publications - Physics

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