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Author Yang, Huan ♦ Ren, Cong ♦ Shan, Lei ♦ Wen, Hai-Hu
Source arXiv.org
Content type Text
File Format PDF
Date of Submission 2008-06-05
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics
Subject Keyword Condensed Matter - Superconductivity ♦ physics:cond-mat
Abstract By 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.
Description Reference: Phys. Rev. B 78, 092504 (2008)
Educational Use Research
Learning Resource Type Article
Page Count 5


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