@article{Kehlberger2015Lengt-32086,
  year={2015},
  doi={10.1103/PhysRevLett.115.096602},
  title={Length Scale of the Spin Seebeck Effect},
  number={9},
  volume={115},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Kehlberger, Andreas and Ritzmann, Ulrike and Hinzke, Denise and Guo, Er-Jia and Cramer, Joel and Jakob, Gerhard and Onbasli, Mehmet C. and Kim, Dong Hun and Ross, Caroline A. and Jungfleisch, Matthias B. and Hillebrands, Burkard and Nowak, Ulrich and Kläui, Mathias},
  note={Article Number: 096602}
}

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    <dc:creator>Jungfleisch, Matthias B.</dc:creator>
    <dc:contributor>Ritzmann, Ulrike</dc:contributor>
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    <dc:creator>Kläui, Mathias</dc:creator>
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    <dc:creator>Nowak, Ulrich</dc:creator>
    <dc:creator>Jakob, Gerhard</dc:creator>
    <dc:contributor>Kim, Dong Hun</dc:contributor>
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    <dc:contributor>Kläui, Mathias</dc:contributor>
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    <dc:creator>Hillebrands, Burkard</dc:creator>
    <dc:creator>Cramer, Joel</dc:creator>
    <dc:contributor>Kehlberger, Andreas</dc:contributor>
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    <dc:contributor>Ross, Caroline A.</dc:contributor>
    <dc:creator>Kehlberger, Andreas</dc:creator>
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    <dc:creator>Onbasli, Mehmet C.</dc:creator>
    <dcterms:issued>2015</dcterms:issued>
    <dc:language>eng</dc:language>
    <dc:contributor>Guo, Er-Jia</dc:contributor>
    <dc:contributor>Jungfleisch, Matthias B.</dc:contributor>
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    <dcterms:title>Length Scale of the Spin Seebeck Effect</dcterms:title>
    <dc:creator>Hinzke, Denise</dc:creator>
    <dcterms:abstract xml:lang="eng">We investigate the origin of the spin Seebeck effect in yttrium iron garnet (YIG) samples for film thicknesses from 20 nm to 50  μm at room temperature and 50 K. Our results reveal a characteristic increase of the longitudinal spin Seebeck effect amplitude with the thickness of the insulating ferrimagnetic YIG, which levels off at a critical thickness that increases with decreasing temperature. The observed behavior cannot be explained as an interface effect or by variations of the material parameters. Comparison to numerical simulations of thermal magnonic spin currents yields qualitative agreement for the thickness dependence resulting from the finite magnon propagation length. This allows us to trace the origin of the observed signals to genuine bulk magnonic spin currents due to the spin Seebeck effect ruling out an interface origin and allowing us to gauge the reach of thermally excited magnons in this system for different temperatures. At low temperature, even quantitative agreement with the simulations is found.</dcterms:abstract>
    <dc:contributor>Onbasli, Mehmet C.</dc:contributor>
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