Magnetization Relaxation and Collective Vortex Pinning in the Fe-Based Superconductor SmFeAsO_0.9F_0.1

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dc.creatorYang, Huan
dc.creatorRen, Cong
dc.creatorShan, Lei
dc.creatorWen, Hai-Hu
dc.date2008-06-05
dc.date2008-09-20
dc.date.accessioned2026-07-07T10:03:50Z
dc.date.available2026-07-07T10:03:50Z
dc.descriptionBy measuring the dynamic and traditional magnetization relaxations we investigate the vortex dynamics of the newly discovered superconductor SmFeAsO_0.9F_0.1 with Tc = 55K. It is found that the relaxation rate is rather large reflecting a small characteristic pinning energy. Moreover it shows a weak temperature dependence in wide temperature region, which resembles the behavior of the cuprate superconductors. Combining with the resistive data under different magnetic fields, a vortex phase diagram is obtained. Our results strongly suggest that the model of collective vortex pinning applies to this new superconductor very well.
dc.description5 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0806.0980
dc.identifierhttp://arxiv.org/abs/0806.0980
dc.identifierPhys. Rev. B 78, 092504 (2008)
dc.identifierdoi:10.1103/PhysRevB.78.092504
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/169439
dc.subjectSuperconductivity
dc.titleMagnetization Relaxation and Collective Vortex Pinning in the Fe-Based Superconductor SmFeAsO_0.9F_0.1
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