2010/08/31 by Qing-Ping Ding, T. Ozaki, Toshihiro Taen +7
Biochemistry, Genetics and Molecular Biology · Materials Science · Physics and Astronomy · #Amyloidosis: Diagnosis, Treatment, Outcomes #Iron-based superconductors research #Physics of Superconductivity and Magnetism #cond-mat.supr-con
paper · pdf · doi:10.1016/j.physc.2011.05.018
published as IEEE Trans. Appl. Supercond. 21, 2858 (2011) · text 4 pages, 5 figures, 1 table
openalex publication_date 2011/05/20 · arxiv created 2011/12/18 · arxiv updated 2011/12/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
FeTe0.5Se0.5 superconducting wires have been fabricated using ex-situ PIT method with an Fe sheath. Among the other FeAs-based superconductor, FeTe0.5Se0.5 has great advantage for application due to binary composition and less toxic. Surprisingly, superconducting current was observed in the as-fabricated wire without any heat treatments. Zero resistivity and transport critical current density (Jc) were 3.2 K and 2.8 A/cm2, respectively. In addition, by annealing at 200 degC for 2 h, critical temperature Tczero and Jc were enhanced up to 9.1 K, and 64.1 A/cm2, respectively. This suggests that the grain connectivity was improved by heat treatment, and superconducting property of FeTe0.5Se0.5 wire was enhanced.