Superconducting gap structure of the cage compound Sc5Rh 6Sn18

Naoki Kase, Shunichiro Kittaka, Toshiro Sakakibara, Jun Akimitsu

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We report on the superconducting properties of the cage compound Sc 5Rh6Sn18with Tc = 5 K determined by magnetic susceptibility, electrical resistivity, and specific heat measurements. Measurements in magnetic fields indicate type-II superconductivity with the upper critical field μ0Hc2(0) = 7.24 T. H c2(T) shows a clear enhancement over the Werthamer-Helfand-Hohenberg prediction, suggesting a strong electron-phonon coupling. Specific heat data reveal that Sc5Rh6Sn18is indeed a strong-coupling BCS superconductor having an isotropic superconducting gap.

Original languageEnglish
Article numberSB016
Journaljournal of the physical society of japan
Volume81
Issue numberSUPPL.B
DOIs
Publication statusPublished - Sep 2012
Externally publishedYes

Keywords

  • Cage compound
  • Specific heat
  • Strong-coupling superconductor
  • Superconductivity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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