Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1517284 | Journal of Physics and Chemistry of Solids | 2010 | 4 Pages |
Abstract
Synthetic conditions such as stoichiometries, temperature and pressure are optimized to achieve a high quality oxygen deficient SmFeAsO0.6 superconductor. Both electric and magnetic measurements show a sharp superconducting transition at about 55 K. Several important physical parameters are deduced. The apparent superconducting gap observed in heat capacity with 2Δo/kBTc of 4.57 larger than that of previous fluorine replaced samples indicate that this superconductivity will not strongly conflict with the phonon-mediated BCS mechanism. The mean free length ℓ=18.8 nm and the coherent length ξ=2.3–3.3 nm show that the superconductivity is in the clean limit.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Jing Ju, Khuong Huynh, Jun Tang, Zhaofei Li, Masanori Watahiki, Kazumi Sato, Hidenori Terasaki, Eiji Ohtani, Hirotsugu Takizawa, Katsumi Tanigaki,