The Ruthenocuprates - Natural Superconductor-Ferromagnet Multilayers

Abstract

The recently discovered ruthenocuprates have attracted great interest because of the microscopic coexistence of superconducting and ferromagnetic order. Typically, these materials become magnetically ordered at temperatures around 125-145 K and superconductivity sets in between 15 and 50 K. While superconductivity arises in the CuO2 layers the RuO2 layers in between order magnetically. In this paper we summarize some of the crystallographic, magnetic and superconducting properties of the ruthenocuprates, as obtained from investigations on polycrystalline samples as well as single crystals.

arXiv comment20 pages, 19 figures; to be published in Journal Comptes Rendus de l'Academie des Sciences (Comptes Rendus Physique), Special Issue on "Magnetism and Superconductivity Coexistence"

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Cited by in corpus (10)

• RbEu(Fe${}_{1-x}$Ni${}_x$)${}_4$As${}_4$: From a ferromagnetic superconductor to a superconducting ferromagnet
• Unique interplay between superconducting and ferromagnetic orders in EuRbFe${}_4$As${}_4$
• Magnetic structure of RuSr${}_2$GdCu${}_2$O${}_8$ determined by resonant x-ray diffraction
• Search for Magnetic Order in Superconducting RuSr2Eu1.2Ce0.8Cu2O10
• Proximity effect in atomic-scaled hybrid superconductor/ferromagnet structures: crucial role of electron spectra
• The magnetic state of 1212-type ruthenocuprate in magnetocaloric and magnetoresistivity measurements of polycrystalline samples of RuSr2Gd1-xCexCu2O8 and Ru1-xSr2GdCu2O8
• Transport, magnetic and superconducting properties of RuSr2RCu2O8 (R= Eu, Gd) doped with Sn
• Field induced superconducting phase in Superconductor-Normal metal and Superconductor-Superconductor bilayer
• The characteristics of the superconducting and magnetic phases in the polycrystalline samples of ruthenocuprates of nominal compositions RuSr2GdCu2O8, Ru0.98Sr2GdCu2O8 and Ru0.5Sr2GdCu2.5O8-d
• Re-entrance of resistivity due to the interplay of superconductivity and magnetism in $\ce{Eu_{0.73}Ca_{0.27}(Fe_{0.87}Co_{0.13})2As2}$