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Superconducting properties of the Fe-based layered superconductor LaFeAsO0.9F0.1-delta.
MedLine Citation:
PMID:  18764424     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We have employed a new route to synthesize single phase F-doped LaOFeAs compound and confirmed the superconductivity above 20 K in this Fe-based system. We show that the new superconductor has a rather high upper critical field of over 50 T. A clear signature of superconducting gap opening below T(c) was observed in the far-infrared reflectance spectra, with 2Delta/kT(c) approximately 3.5-4.2. Furthermore, we show that the new superconductor has electron-type conducting carriers with a rather low-carrier density.
Authors:
G F Chen; Z Li; G Li; J Zhou; D Wu; J Dong; W Z Hu; P Zheng; Z J Chen; H Q Yuan; J Singleton; J L Luo; N L Wang
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Publication Detail:
Type:  Journal Article     Date:  2008-07-31
Journal Detail:
Title:  Physical review letters     Volume:  101     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-09-03     Completed Date:  2008-09-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  057007     Citation Subset:  -    
Affiliation:
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, China.
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