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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on EuAgSb by Materials Project

EuAgSb crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Eu2+ is bonded to six equivalent Sb3- atoms to form a mixture of corner, edge, and face-sharing EuSb6 octahedra. The corner-sharing octahedral tilt angles are 47°. All Eu–Sb bond lengths are 3.46 Å. Ag1+ is bonded in a trigonal planar geometry to three equivalent Sb3- atoms. All Ag–Sb bond lengths are 2.77 Å. Sb3- is bonded in a 9-coordinate geometry to six equivalent Eu2+ and three equivalent Ag1+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Eu2AgSb by Materials Project

Eu2AgSb is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Eu is bonded in a body-centered cubic geometry to four equivalent Ag and four equivalent Sb atoms. All Eu–Ag bond lengths are 3.36 Å. All Eu–Sb bond lengths are 3.36 Å. Ag is bonded in a body-centered cubic geometry to eight equivalent Eu atoms. Sb is bonded in a body-centered cubic geometry to eight equivalent Eu atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Eu(Ag2Sb)2 by Materials Project

EuAg4Sb2 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Eu2+ is bonded to six equivalent Sb3- atoms to form edge-sharing EuSb6 octahedra. All Eu–Sb bond lengths are 3.31 Å. There are two inequivalent Ag1+ sites. In the first Ag1+ site, Ag1+ is bonded in a 1-coordinate geometry to six Ag1+ and four equivalent Sb3- atoms. There are three shorter (2.95 Å) and three longer (3.02 Å) Ag–Ag bond lengths. There are one shorter (2.88 Å) and three longer (3.23 Å) Ag–Sb bond lengths. In the second Ag1+ site, Ag1+ is bonded in a 3-coordinate geometry to three equivalent Ag1+ and three equivalent Sb3- atoms. All Ag–Sb bond lengths are 2.84 Å. Sb3- is bonded in a 10-coordinate geometry to three equivalent Eu2+ and seven Ag1+ atoms.

36 MATERIALS SCIENCE↗