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Evidence for Triplet Superconductivity in a Superconductor-Ferromagnet Spin Valve

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 نشر من قبل Yakov V. Fominov
 تاريخ النشر 2012
  مجال البحث فيزياء
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We have studied the dependence of the superconducting (SC) transition temperature on the mutual orientation of magnetizations of Fe1 and Fe2 layers in the spin valve system CoO_x/Fe1/Cu/Fe2/Pb. We find that this dependence is nonmonotonic when passing from the parallel to the antiparallel case and reveals a distinct minimum near the orthogonal configuration. The analysis of the data in the framework of the SC triplet spin valve theory gives direct evidence for the long-range triplet superconductivity arising due to noncollinearity of the two magnetizations.



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