75As-NMR studies on La FeAsO1-xFx (x=0.14) under a pressure of 3GPa

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dc.creatorTatsumi, K.
dc.creatorFujiwara, N.
dc.creatorOkada, H.
dc.creatorTakahashi, H.
dc.creatorKamihara, Y.
dc.creatorHirano, M.
dc.creatorHosono, H.
dc.date2008-11-22
dc.date2009-02-05
dc.date.accessioned2026-07-07T12:39:15Z
dc.date.available2026-07-07T12:39:15Z
dc.description75As-nuclear magnetic resonance (NMR) on an iron-based superconductor LaFeAsO1-xFx (x=0.14) was performed under a pressure of 3GPa. Enhancement of superconducting transition temperature Tc was confirmed from the relaxation rate 1/T1; Tc goes up to 40K by applying pressure up to 3GPa. 1/T1T, which is temperature independent just above Tc and gives a measure of the density of states (DOS) at the Fermi energy, enhances by applying pressure. These facts suggest that the increase of the DOS leads to the enhancement of Tc. On the other hand, anomalous behavior of 1/T1T observed at high temperatures is suppressed by applying pressure.
dc.description4pages, 5figures. Scheduled to appear in Journal of Phys. Soc. Jpn VoL.78 No.2 (2009)
dc.identifierhttps://arxiv.org/abs/0811.3672
dc.identifierhttp://arxiv.org/abs/0811.3672
dc.identifierJournal of Phys.Soc.Jpn 78 (2009) 023709
dc.identifierdoi:10.1143/JPSJ.78.023709
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/219042
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.title75As-NMR studies on La FeAsO1-xFx (x=0.14) under a pressure of 3GPa
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