Materials Data on YMgAl by Materials Project

Abstract

MgYAl crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Mg is bonded in a 4-coordinate geometry to four Al atoms. There are two shorter (2.85 Å) and two longer (2.89 Å) Mg–Al bond lengths. Y is bonded in a 5-coordinate geometry to five Al atoms. There are four shorter (3.16 Å) and one longer (3.19 Å) Y–Al bond lengths. There are two inequivalent Al sites. In the first Al site, Al is bonded in a 9-coordinate geometry to three equivalent Mg and six equivalent Y atoms. In the second Al site, Al is bonded in a 9-coordinate geometry to six equivalent Mg and three equivalent Y atoms.