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Intrinsic Josephson Effects in the Magnetic Superconductor RuSr2GdCu2O8

T. Nachtrab·D. Koelle·R. Kleiner·C. Bernhard·C. T. Lin
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Abstract

We have measured interlayer current transport in small sized RuSr2GdCu2O8 single crystals. We find a clear intrinsic Josephson effect showing that the material acts as a natural superconductor-insulator-ferromagnet-insulator-superconductor superlattice. So far, we detected no unconventional behavior due to the magnetism of the RuO2 layers.

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T. Nachtrab, D. Koelle, R. Kleiner, C. Bernhard, C. T. Lin. 2004-01-29. Intrinsic Josephson Effects in the Magnetic Superconductor RuSr2GdCu2O8. https://doi.org/10.1103/physrevlett.92.117001

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