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تسجيل مستخدم جديد19-F NMR Investigation of Iron-pnictide Superconductor LaFeAsO(0.89)F(0.11)
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We report 19-F NMR investigation of the new high temperature superconductor LaFeAsO(0.89)F(0.11) (Tc ~ 28K). We demonstrate that low frequency spin fluctuations exhibit pseudo gap behavior above Tc. We also deduce the London penetration depth lambda from NMR line broadening below Tc.
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