Magnetotransport properties of dopedRuSr2GdCu2O8

2003/02/24 by J. E. McCrone, J. L. Tallon, J. R. Cooper +4 · 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.supr-con

paper · pdf · doi:10.1103/physrevb.68.064514

10 pages, 7 figures, submitted to Phys. Rev. B., correspondence to [email protected]

arxiv created 2003/02/24 · openalex publication_date 2003/08/26 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

RuSr₂GdCu₂O₈, in which magnetic order and superconductivity coexist with T_mag\ensuremath≫T_c, is a complex material which poses new and important questions to our understanding of the interplay between magnetic and superconducting order. Resistivity, Hall-effect, and thermopower measurements on sintered ceramic RuSr₂GdCu₂O₈ are presented, together with results on a broad range of substituted analogs. The Hall effect and thermopower both show anomalous decreases below T_mag, which may be explained within a simple two-band model by a transition from localized to more itinerant behavior in the RuO₂ layer at T_mag.

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