LaFeAsO$_{1-x}$F$_x$: A low carrier density superconductor near itinerant magnetism

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dc.creatorSingh, D. J.
dc.creatorDu, M. H.
dc.date2008-03-04
dc.date2008-06-13
dc.date.accessioned2026-07-07T09:44:07Z
dc.date.available2026-07-07T09:44:07Z
dc.descriptionDensity functional studies of 26K superconducting LaFeAs(O,F) are reported. We find a low carrier density, high density of states, $N(E_F)$ and modest phonon frequencies relative to $T_c$. The high $N(E_F)$ leads to proximity to itinerant magnetism, with competing ferromagnetic and antiferromagnetic fluctuations and the balance between these controlled by doping level. Thus LaFeAs(O,F) is in a unique class of high $T_c$ superconductors: high $N(E_F)$ ionic metals near magnetism.
dc.descriptionShortened published form. Typos corrected
dc.identifierhttps://arxiv.org/abs/0803.0429
dc.identifierhttp://arxiv.org/abs/0803.0429
dc.identifierPhysical Review Letters 100, 237003 (2008)
dc.identifierdoi:10.1103/PhysRevLett.100.237003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/162756
dc.subjectSuperconductivity
dc.subjectMaterials Science
dc.titleLaFeAsO$_{1-x}$F$_x$: A low carrier density superconductor near itinerant magnetism
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