Crystal structure of the new FeSe(1-x) superconductor.
The newly discovered superconductor FeSe(1-x) (x approximately 0.08, T(c)(onset) approximately 13.5 K at ambient pressure rising to 27 K at 1.48 GPa) exhibits a structural phase transition from tetragonal to orthorhombic below 70 K at ambient pressure-the crystal structure in the superconducting state shows remarkable similarities to that of the REFeAsO(1-x)F(x) (RE = rare earth) superconductors.
Margadonna
Serena
S
School of Chemistry, University of Edinburgh, Edinburgh, UKEH9 3JJ. serena.margadonna@ed.ac.uk
Takabayashi
Yasuhiro
Y
McDonald
Martin T
MT
Kasperkiewicz
Karolina
K
Mizuguchi
Yoshikazu
Y
Takano
Yoshihiko
Y
Fitch
Andrew N
AN
Suard
Emmanuelle
E
Prassides
Kosmas
K