Determination of spin polarization using an unconventional iron superconductor

J. A. Gifford, B. B. Chen, J. Zhang, G. J. Zhao, D. R. Kim, B. C. Li, D. Wu, Tingyong Chen

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


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.

Original languageEnglish (US)
Article number115023
JournalAIP Advances
Issue number11
StatePublished - Nov 1 2016

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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