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An unconventional iron superconductor, SmO0.7F0.3FeAs, has been utilized to determine the spin polarization and temperature dependence of a highly spin-polarized material, La0.67Sr0.33MnO3, with Andreev reflection spectroscopy. The polarization value obtained is the same as that determined using a conventional superconductor…

An unconventional iron superconductor, SmO0.7F0.3FeAs, has been utilized to determine the spin polarization and temperature dependence of a highly spin-polarized material, La0.67Sr0.33MnO3, with Andreev reflection spectroscopy. The polarization value obtained is the same as that determined using a conventional superconductor Pb but the temperature dependence of the spin polarization can be measured up to 52 K, a temperature range, which is several times wider than that using a typical conventional superconductor. The result excludes spin-parallel triplet pairing in the iron superconductor.

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    Title
    • Determination of Spin Polarization Using an Unconventional Iron Superconductor
    Contributors
    Date Created
    2016-11-21
    Resource Type
  • Text
    • Collections this item is in
    ASU Scholarship Showcase
    Identifier
    • Digital object identifier: 10.1063/1.4968620
    • International standard serial number
      2158-3226
    Note
    • The final version of this article, as published in AIP Advances, can be viewed online at: http://aip.scitation.org/doi/10.1063/1.4968620

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    This is a suggested citation. Consult the appropriate style guide for specific citation guidelines.

    Gifford, J. A., Chen, B. B., Zhang, J., Zhao, G. J., Kim, D. R., Li, B. C., . . . Chen, T. Y. (2016). Determination of spin polarization using an unconventional iron superconductor. AIP Advances, 6(11), 115023. doi:10.1063/1.4968620

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