Microwave penetration depth and quasiparticle conductivity of PrFeAsO1-y single crystals: Evidence for a full-gap superconductor

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

研究成果: Article同行評審

220 引文 斯高帕斯(Scopus)

摘要

In-plane microwave penetration depth λab and quasiparticle conductivity at 28 GHz are measured in underdoped single crystals of the Fe-based superconductor PrFeAsO1-y (Tc> 35K) by using a sensitive superconducting cavity resonator. λab(T) shows flat dependence at low temperatures, which is incompatible with the presence of nodes in the superconducting gap Δ(k). The temperature dependence of the superfluid density demonstrates that the gap is nonzero (Δ/kBT> 1.6) all over the Fermi surface. The microwave conductivity below Tc exhibits an enhancement larger than the coherence peak, reminiscent of high-Tc cuprate superconductors.

原文English
文章編號017002
期刊Physical review letters
102
發行號1
DOIs
出版狀態Published - 2009 一月 5

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

指紋 深入研究「Microwave penetration depth and quasiparticle conductivity of PrFeAsO1-y single crystals: Evidence for a full-gap superconductor」主題。共同形成了獨特的指紋。

引用此