Superconducting properties of SmO1-xFxFeAs wires with Tc = 52 K prepared by the powder-in-tube method

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dc.creatorGao, Zhaoshun
dc.creatorWang, Lei
dc.creatorQi, Yanpeng
dc.creatorWang, Dongliang
dc.creatorZhang, Xianping
dc.creatorMa, Yanwei
dc.creatorYang, Huan
dc.creatorWen, Haihu
dc.date2008-06-15
dc.date2008-06-19
dc.date.accessioned2026-07-07T09:59:52Z
dc.date.available2026-07-07T09:59:52Z
dc.descriptionWe demonstrate that Ta sheathed SmO1-xFxFeAs wires were successfully fabricated by the powder-in-tube (PIT) method for the first time. Structural analysis by mean of x-ray diffraction shows that the main phase of SmO1-xFxFeAs was obtained by this synthesis method. The transition temperature of the SmO0.65F0.35FeAs wires was confirmed to be as high as 52 K. Based on magnetization measurements, it is found that a globe current can flow on macroscopic sample dimensions with Jc of ~3.9x10^3 A/cm^2 at 5 K and self field, while a high Jc about 2x10^5 A/cm^2 is observed within the grains, suggesting that a significant improvement in the globle Jc is possible. It should be noted that the Jc exhibits a very weak field dependence behavior. Furthermore, the upper critical fields (Hc2) determined according to the Werthamer-Helfand-Hohenberg formula are (T= 0 K) = 120 T, indicating a very encouraging application of the new superconductors.
dc.description14 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/0806.2451
dc.identifierhttp://arxiv.org/abs/0806.2451
dc.identifierSupercond. Sci. Technol. 21 (2008) 112001
dc.identifierdoi:10.1088/0953-2048/21/11/112001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/168183
dc.subjectSuperconductivity
dc.titleSuperconducting properties of SmO1-xFxFeAs wires with Tc = 52 K prepared by the powder-in-tube method
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