F<mml:mprescripts/><mml:none/>19NMR investigation of the iron pnictide superconductorLaFeAsO0.89F0.11

2008/04/30 by K. Ahilan, Fanlong Ning, F. L. Ning +11 · 5 citations
Business, Management and Accounting · Chemistry · Materials Science · Physics and Astronomy · #Chemistry #Condensed matter physics #Corporate Taxation and Avoidance #Crystallography #Iron-based superconductors research #Lambda #London penetration depth #Nuclear magnetic resonance #Optics #Physics #Pseudogap #Rare-earth and actinide compounds #Superconductivity #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.78.100501

published as Phys. Rev. B78, 100501(R) (2008). · Accepted for publication in Phys. Rev. B (Rapid) with the original submission date

arxiv created 2008/08/18 · openalex publication_date 2008/09/03 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We report on ¹⁹F nuclear magnetic resonance (NMR) investigation of the high-temperature superconductor LaFeAsO_0.89F_0.11 (T_c\ensuremath∼28 K). We demonstrate that low-frequency spin fluctuations exhibit pseudogap behavior above T_c. We also deduce the London penetration depth \ensuremathλ from NMR line broadening below T_c.

Citations

• Correlated Electronic Structure ofLaO1−xFxFeAs
• As<mml:mprescripts/><mml:none/>75NMR Studies of SuperconductingLaFeAsO0.9F0.1
• Determining gap nodal structures in Fe-based superconductors: Theory of the angle dependence of the low-temperature specific heat in an applied magnetic field
• Two-band superconductivity in LaFeAsO0.89F0.11 at very high magnetic fields
• The pseudogap in high-temperature superconductors: an experimental survey
• Superconductivity in the iron-based F-doped layered quaternary compound Nd[O 1 − x F x ]FeAs

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• A unified description of cuprate and iron arsenide superconductors
• Doping dependence of spin fluctuations and electron correlations in iron pnictides
• Scanning tunneling spectroscopy ofSmFeAsO0.85: Possible evidence ford-wave order-parameter symmetry