Intrinsic Josephson Effects in the Magnetic Superconductor RuSr2GdCu2O8
arXiv:cond-mat/0401606 · doi:10.1103/PhysRevLett.92.117001
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.
4 pages, 5 figures, to appear in Phys. Rev. Lett