Materials Data on GdCuSeO by Materials Project

Abstract

GdOCuSe is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Gd3+ is bonded in a 4-coordinate geometry to four equivalent Se2- and four equivalent O2- atoms. All Gd–Se bond lengths are 3.24 Å. All Gd–O bond lengths are 2.29 Å. Cu1+ is bonded to four equivalent Se2- atoms to form a mixture of edge and corner-sharing CuSe4 tetrahedra. All Cu–Se bond lengths are 2.52 Å. Se2- is bonded in a 12-coordinate geometry to four equivalent Gd3+ and four equivalent Cu1+ atoms. O2- is bonded to four equivalent Gd3+ atoms to form a mixture of edge and corner-sharing OGd4 tetrahedra.