@article{May2001Tempe-8873,
  year={2001},
  doi={10.1063/1.1361098},
  title={Temperature-dependent magnetoresistance of magnetic tunnel junctions with ultraviolet light-assisted oxidized barriers},
  number={14},
  volume={78},
  journal={Applied Physics Letters},
  pages={2026--2028},
  author={May, Ulrich and Samm, K. and Kittur, Harish and Hauch, Jan O. and Calarco, Raffaella and Rüdiger, Ulrich and Güntherodt, Gernot}
}

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    <dc:contributor>Samm, K.</dc:contributor>
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    <dcterms:abstract xml:lang="eng">Co(10 nm)/AlOx(nominally 2 nm)/Co(20 nm) tunnel junctions have been prepared under ultrahigh vacuum conditions applying a shadow mask technique. An ultraviolet light-assisted oxidation process of the AlOx barrier has been optimized by in situ x-ray photoelectron spectroscopy, in conjunction with temperature-dependent tunneling magnetoresistance measurements. Optimum-oxidized tunnel junctions show a magnetoresistance of 20% at 285 K, and up to 38% at 100 K. For under-oxidized samples, with a remaining Al layer between the Co bottom electrode and the AlOx barrier, the tunneling magnetoresistance decreases more rapidly with increasing temperature than observed for the over-oxidized samples. The resistance × area product of optimum-oxidized tunneling junctions exhibits a minimum, and increases for under- and over-oxidized samples.</dcterms:abstract>
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    <dc:creator>Hauch, Jan O.</dc:creator>
    <dc:contributor>Güntherodt, Gernot</dc:contributor>
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    <dcterms:bibliographicCitation>First publ. in: Applied Physics Letters 78 (2001), 14, pp. 2026-2028</dcterms:bibliographicCitation>
    <dc:contributor>Kittur, Harish</dc:contributor>
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