Intrinsic Josephson Effects in the Magnetic Superconductor RuSr2GdCu2O8

T. Nachtrab; D. Koelle; R. Kleiner; C. Bernhard; C. T. Lin

doi:10.1103/PhysRevLett.92.117001

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Intrinsic Josephson Effects in the Magnetic Superconductor RuSr2GdCu2O8

T. Nachtrab, D. Koelle, R. Kleiner, C. Bernhard, C. T. Lin

DOI 10.1103/PhysRevLett.92.117001 · Physical Review Letters

T1

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

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
RuSr2GdCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	57	Pressure not reported	onset
RuSr2GdCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	51	Pressure not reported	midpoint
RuSr2GdCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	54	Pressure not reported	unknown