Pressure Effects on the Superconducting and Spin-Density-Wave States of the Newly Discovered Sm(O1-xFx)FeAs

Simple item page
dc.creatorLorenz, B.
dc.creatorSasmal, K.
dc.creatorChaudhury, R. P.
dc.creatorChen, X. H.
dc.creatorLiu, R. H.
dc.creatorWu, T.
dc.creatorChu, C. W.
dc.date2008-04-10
dc.date2008-08-04
dc.date.accessioned2026-07-07T09:54:09Z
dc.date.available2026-07-07T09:54:09Z
dc.descriptionHigh temperature superconductors with a Tc above 40 K have been found to be strongly correlated electron systems and to have a layered structure. Guided by these rules, Kamihara et al. discovered a Tc up to 26 K in the layered La(O1-xFx)FeAs. By replacing La with tri-valence rare-earth elements RE of smaller ionic radii, Tc has subsequently been raised to 41-52 K. Many theoretical models have been proposed emphasizing the important magnetic origin of superconductivity in this compound system and a possible further Tc-enhancement in RE(O1-xFx)FeAs by compression. This later prediction appears to be supported by the pressure-induced Tc-increase in La(O0.89F0.11)FeAs observed. Here we show that, in contrast to previous expectations, pressure can either suppress or enhance Tc, depending on the doping level, suggesting that a Tc exceeding 50's K may be found only in the yet-to-be discovered compound systems related to but different from R(O1-xFx)FeAs and that the Tc of La(O1-xFx)FeAs and Sm(O1-xFx)FeAs may be further raised to 50's K.
dc.description4 text pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0804.1582
dc.identifierhttp://arxiv.org/abs/0804.1582
dc.identifierPhys. Rev. B 78, 012505 (2008)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/166212
dc.subjectSuperconductivity
dc.titlePressure Effects on the Superconducting and Spin-Density-Wave States of the Newly Discovered Sm(O1-xFx)FeAs
dc.typetext

Files

Collections

arXiv