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DOE OSTI2020

Materials Data on EuAsAu by Materials Project

EuAuAs is hexagonal omega structure-derived structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Eu2+ is bonded to six equivalent Au1+ and six equivalent As3- atoms to form a mixture of face and edge-sharing EuAs6Au6 cuboctahedra. All Eu–Au bond lengths are 3.32 Å. All Eu–As bond lengths are 3.32 Å. Au1+ is bonded in a 3-coordinate geometry to six equivalent Eu2+ and three equivalent As3- atoms. All Au–As bond lengths are 2.60 Å. As3- is bonded in a 3-coordinate geometry to six equivalent Eu2+ and three equivalent Au1+ atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Eu2AsAu by Materials Project

Eu2AuAs is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Eu2+ is bonded in a body-centered cubic geometry to four equivalent Au1- and four equivalent As3- atoms. All Eu–Au bond lengths are 3.24 Å. All Eu–As bond lengths are 3.24 Å. Au1- is bonded in a body-centered cubic geometry to eight equivalent Eu2+ atoms. As3- is bonded in a body-centered cubic geometry to eight equivalent Eu2+ atoms.

36 MATERIALS SCIENCE↗