Spatial development of superconductivity in the Sr2RuO4-Ru eutectic system

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dc.creatorKittaka, Shunichiro
dc.creatorNakamura, Taketomo
dc.creatorYaguchi, Hiroshi
dc.creatorYonezawa, Shingo
dc.creatorMaeno, Yoshiteru
dc.date2009-05-13
dc.date2009-05-15
dc.date.accessioned2026-07-07T13:17:29Z
dc.date.available2026-07-07T13:17:29Z
dc.descriptionWe have clarified how the enhanced superconductivity, often referred to as the 3-K phase superconductivity, develops in the Sr2RuO4-Ru eutectic system. From the detailed ac and dc susceptibility measurements on well-characterized crystals, we revealed strongly anisotropic shielding, governed by the direction of the screening current dominated within the RuO2 plane rather than by the orientation of the Ru lamellae. The onset temperature of the 3-K phase superconductivity probed by diamagnetic screening is as high as 3.5 K. The temperature dependence of the diamagnetic shielding above around 2 K is well ascribed by the interfacial screening around each Ru lamella. Below around 2 K, the rapid development of the shielding fraction as well as its peculiar esponse to ac and dc magnetic fields are explained by the formation of the Josephson network consisting of inter-lamellar supercurrents.
dc.description6 pages, 6 figures, accepted for publication in J. Phys. Soc. Jpn
dc.identifierhttps://arxiv.org/abs/0905.2009
dc.identifierhttp://arxiv.org/abs/0905.2009
dc.identifierJ. Phys. Soc. Jpn. 78, 064703 (2009).
dc.identifierdoi:10.1143/JPSJ.78.064703
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/231126
dc.subjectSuperconductivity
dc.titleSpatial development of superconductivity in the Sr2RuO4-Ru eutectic system
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