2009/03/31 by Hiraku Ogino, H. Ogino, Y. Matsumura +9 · 6 citations
Business, Management and Accounting · Chemistry · Materials Science · Physics and Astronomy · #Calcination #Chemistry #Condensed matter physics #Corporate Taxation and Avoidance #Crystal structure #Crystallography #Electrical resistivity and conductivity #Fluorite #Iron-based superconductors research #Lattice constant #Materials science #Metallurgy #Nuclear magnetic resonance #Oxide #Perovskite (structure) #Physics #Pnictogen #Stacking #Superconductivity #cond-mat.supr-con
paper · pdf · doi:10.1088/0953-2048/22/7/075008
published as Supercond. Sci. Technol. 22 (2009) 075008 · 6pages, 4 figures
openalex publication_date 2009/06/02 · arxiv created 2009/06/06 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
A new layered pnictide oxide (Fe 2 P 2 )(Sr 4 Sc 2 O 6 ) has been synthesized by solid-state reaction. This material has an alternating layer stacking structure of anti-fluorite Fe 2 P 2 and perovskite-based Sr 4 Sc 2 O 6 oxide layers. The space group of the material is P 4/ nmm and the lattice constants a and c are 4.016 and 15.543 Å, respectively. The interlayer Fe–Fe distance corresponding to the c -axis length is the longest ever reported in the iron-based pnictides. In both magnetization and resistivity measurements, the present compound exhibited superconductivity below 17 K; this temperature is much higher than that for LaFePO and the highest in arsenic-free iron-based pnictide systems under ambient pressure.