11 citations · 28 across the 3 of their papers we have counts for
3 papers
Sulfur annealing effect for superconductivity in iron chalcogenide compounds
K. Deguchi, A. Yamashita, T. Yamaki +8
We discovered a novel annealing method for Fe-chalcogenide superconductors. It was found that sulfur annealing deintercalated excess Fe via formation of FeS2. Due to its specifics,…
α-FeAs-free SmFeAsO1-xFx by low temperature sintering with slow cooling
Masaya Fujioka, Saleem James Denholme, Toshinori Ozaki +9
We obtained amorphous-FeAs-free SmFeAsO1-xFx using a low temperature sintering with slow cooling. SmFeAsO1-xFx is sintered at 980 °C for 40 hours and cooled slowly down to 600 °C.…
Effect of the indium addition on the superconducting property and the impurity phase in polycrystalline SmFeAsO1-xFx
Masaya Fujioka, Toshinori Ozaki, Hiroyuki Takeya +9
We report enhancement in the magnetic critical current density of indium added polycrystalline SmFeAsO1-xFx. The value of magnetic Jc is around 25 kA/cm2 at 4.2 K under self-magnet…