Spin-singlet superconductivity with multiple gaps in PrFeAsO0.89F0.11
We report 75As and 19F NMR studies on the superconducting properties of the newly discovered compound PrFeAsO0.89F0.11 (Tc = 45 K). The Knight shift in the direction of $H\parallel ab$-plane decreases below Tc to almost zero, which indicates spin-singlet pairing. The temperature dependencies of both...
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Published in | Europhysics letters Vol. 83; no. 5; pp. 57001 - 57001(4) |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
IOP Publishing
01.09.2008
EDP Sciences |
Subjects | |
Online Access | Get full text |
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Summary: | We report 75As and 19F NMR studies on the superconducting properties of the newly discovered compound PrFeAsO0.89F0.11 (Tc = 45 K). The Knight shift in the direction of $H\parallel ab$-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. |
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Bibliography: | istex:05D4EDA7960E145CAC0BDD50A3988D2B0BF76928 publisher-ID:epl11180 ark:/67375/80W-9GVRH952-W ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0295-5075 1286-4854 |
DOI: | 10.1209/0295-5075/83/57001 |