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    Nonlinear spin waves in magnetic thin films - foldover, dispersive shock waves, and spin pumping

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    http://hdl.handle.net/10217/178848
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    Abstract
    Three nonlinear phenomena of spin waves and the spin Seebeck effect in yttrium iron garnet (YIG)/Pt bi-layer structures are studied in this thesis and are reported in detail in Chapters 4-7. In the fourth chapter, the first observation of foldover effect of nonlinear eigenmodes in feedback ring systems is reported. The experiments made use of a system that consisted of a YIG thin film strip, which supported the propagation of forward volume spin waves, and a microwave amplifier, which amplified the signal from the output of the YIG strip and then fed it back to the input of the strip. The ...
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    Author(s)
    Janantha, Pasdunkorale Arachchige Praveen

    Advisor(s)
    Wu, Mingzhong

    Date Issued
    2016
    Format
    born digital; doctoral dissertations
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    • 2000-2019 - CSU Theses and Dissertations
    • Theses and Dissertations - Department of Physics

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