Low-Temperature Rapid Synthesis and Superconductivity of Fe-Based Oxypnictide Superconductors

Abstract

we were able to develop a novel method to synthesize Fe-based oxypnictide superconductors. By using LnAs and FeO as the starting materials and a ball-milling process prior to solid-state sintering, Tc as high as 50.7 K was obtained with the sample of Sm 0.85Nd0.15FeAsO0.85F0.15 prepared by sintering at temperatures as low as 1173 K for times as short as 20 min.

arXiv comment2 pages,2 figures, 1 table

References in corpus (3)

• Superconductivity at 43 K in Samarium-arsenide Oxides $SmFeAs{O}_{1-x}{F}_x$
• Critical Fields and Anisotropy of NdO0.82F0.18FeAs Single Crystals
• Upper critical field and fluctuation conductivity in the critical regime of doped SmFeAsO

Cited by in corpus (7)

• Transition Temperature and Upper Critical Field in SmFeAsO1-xFx Synthesized at Low Heating Temperatures
• Physical property characterization of single step synthesized NdFeAsO0.80F0.20 bulk 50K superconductor
• Synthesis of Electron- and Hole-Doped Bulk BaFe2As2 Superconductors by Mechanical Alloying
• Density effect on critical current density and flux pinning properties of polycrystalline SmFeAsO1-xFx superconductor
• Effect of starting materials on the superconducting properties of SmFeAsO1-xFx tapes
• Doping dependence of the upper critical field, superconducting current density and thermally activated flux flow activation energy in polycrystalline CeFeAsO1-xFx superconductors
• Effects of the sintering atmosphere on the superconductivity of SmFeAsO1-xFx compounds