Spin-singlet superconductivity with multiple gaps in PrFeAsO 0.89F0.11

Kazuaki Matano, Z. A. Ren, X. L. Dong, L. L. Sun, Z. X. Zhao, Guo-Qing Zheng

Research output: Contribution to journalArticle

201 Citations (Scopus)

Abstract

We report 75As and 19F NMR studies on the superconducting properties of the newly discovered compound PrFeAsO 0.89F0.11 (Tc=45 K). The Knight shift in the direction of H∥ab-plane decreases below Tc to almost zero, which indicates spin-singlet pairing. The temperature dependencies of both the Knight shift and the spin lattice relaxation rate indicate that there are two gaps opening below Tc, with nodes in the gap function.

Original languageEnglish
Article number57001
JournalEPL
Volume83
Issue number5
DOIs
Publication statusPublished - Sep 1 2008

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superconductivity
nuclear magnetic resonance
spin-lattice relaxation
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Spin-singlet superconductivity with multiple gaps in PrFeAsO 0.89F0.11. / Matano, Kazuaki; Ren, Z. A.; Dong, X. L.; Sun, L. L.; Zhao, Z. X.; Zheng, Guo-Qing.

In: EPL, Vol. 83, No. 5, 57001, 01.09.2008.

Research output: Contribution to journalArticle

Matano, Kazuaki ; Ren, Z. A. ; Dong, X. L. ; Sun, L. L. ; Zhao, Z. X. ; Zheng, Guo-Qing. / Spin-singlet superconductivity with multiple gaps in PrFeAsO 0.89F0.11. In: EPL. 2008 ; Vol. 83, No. 5.
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