Materials Data on LaAuO3 by Materials Project

Abstract

LaAuO3 crystallizes in the orthorhombic Pbcm space group. The structure is three-dimensional. La3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.44–2.69 Å. Au3+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There are two shorter (2.01 Å) and two longer (2.05 Å) Au–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted see-saw-like geometry to two equivalent La3+ and two equivalent Au3+ atoms. In the second O2- site, O2- is bonded to three equivalent La3+ and one Au3+ atom to form a mixture of distorted edge and corner-sharing OLa3Au tetrahedra.