Materials Data on Er3Mn3Ga2Ge by Materials Project
Er3Mn3GeGa2 crystallizes in the hexagonal P-6 space group. The structure is three-dimensional. Er is bonded in a 5-coordinate geometry to six equivalent Mn, three Ga, and two equivalent Ge atoms. There are a spread of Er–Mn bond distances ranging from 3.19–3.30 Å. All Er–Ga bond lengths are 2.94 Å. Both Er–Ge bond lengths are 2.93 Å. Mn is bonded in a 12-coordinate geometry to six equivalent Er, two equivalent Mn, three Ga, and one Ge atom. Both Mn–Mn bond lengths are 2.78 Å. There are two shorter (2.61 Å) and one longer (2.78 Å) Mn–Ga bond lengths. The Mn–Ge bond length is 2.75 Å. There are two inequivalent Ga sites. In the first Ga site, Ga is bonded in a 9-coordinate geometry to six equivalent Er and three equivalent Mn atoms. In the second Ga site, Ga is bonded in a 9-coordinate geometry to three equivalent Er and six equivalent Mn atoms. Ge is bonded in a 9-coordinate geometry to six equivalent Er and three equivalent Mn atoms.