Intrinsic Josephson Effects in the Magnetic SuperconductorRuSr2GdCu2O8

2004/01/29 by T. Nachtrab, D. Koelle, R. Kleiner +2 · 3 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.92.117001

4 pages, 5 figures, to appear in Phys. Rev. Lett

arxiv created 2004/01/29 · openalex publication_date 2004/03/19 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

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. Thus far, we detected no unconventional behavior due to the magnetism of the RuO2 layers.

Citations

• Coupling of Two Superconductors through a Ferromagnet: Evidence for aπJunction

Cited by

• Critical fields and the spontaneous vortex state in the weakly ferromagnetic superconductorRuSr2GdCu2O8
• The magnetic state of 1212-type ruthenocuprate in magnetocaloric and magnetoresistivity measurements of polycrystalline samples of RuSr2Gd1−xCexCu2O8and Ru1−xSr2GdCu2O8
• Lower critical field and intragrain critical current density in theruthenate-cuprate RuSr2Gd1.5Ce0.5Cu2O10