Evidence for fully gapped superconductivity from microwave penetration depth measurements in PrFeAsO1-y single crystals

K. Hashimoto, T. Shibauchi, T. Kato, K. Ikada, R. Okazaki, H. Shishido, M. Ishikado, H. Kito, A. Iyo, H. Eisaki, S. Shamoto, Y. Matsuda

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

By using a sensitive superconducting cavity resonator, we measure the temperature dependence of in-plane microwave penetration depth λab in underdoped single crystals of the iron-pnictide superconductor PrFeAsO1?y (Tc ∼ 35 K). At low temperatures, λab(T ) shows very flat temperature dependence, which indicates that the superconducting gap function Δ(k) is non-zero all over the Fermi surface.

Original languageEnglish
Pages (from-to)145-146
Number of pages2
Journaljournal of the physical society of japan
Volume77
Issue numberSUPPL. C
DOIs
Publication statusPublished - 2008 Jan 1

Keywords

  • Pairing symmetry
  • Quasiparticle excitations
  • Superconducting gap

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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