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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Er3Cu3Sb4 by Materials Project

Er3Cu3Sb4 crystallizes in the cubic I-43d space group. The structure is three-dimensional. Er3+ is bonded in a 8-coordinate geometry to eight equivalent Sb3- atoms. There are four shorter (3.27 Å) and four longer (3.34 Å) Er–Sb bond lengths. Cu1+ is bonded in a 4-coordinate geometry to four equivalent Sb3- atoms. All Cu–Sb bond lengths are 2.65 Å. Sb3- is bonded in a 9-coordinate geometry to six equivalent Er3+ and three equivalent Cu1+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Er2CuSb3 by Materials Project

(ErSb)2CuSb crystallizes in the tetragonal P4/mmm space group. The structure is zero-dimensional and consists of one antimony molecule, one copper molecule, and two ErSb clusters. In each ErSb cluster, Er3+ is bonded in a single-bond geometry to one Sb+2.33- atom. The Er–Sb bond length is 2.62 Å. Sb+2.33- is bonded in a single-bond geometry to one Er3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ErCuSb2 by Materials Project

ErCuSb2 crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Er3+ is bonded in a 8-coordinate geometry to eight Sb2- atoms. There are four shorter (3.15 Å) and four longer (3.25 Å) Er–Sb bond lengths. Cu1+ is bonded to four equivalent Sb2- atoms to form a mixture of edge and corner-sharing CuSb4 tetrahedra. All Cu–Sb bond lengths are 2.68 Å. There are two inequivalent Sb2- sites. In the first Sb2- site, Sb2- is bonded in a 8-coordinate geometry to four equivalent Er3+ and four equivalent Sb2- atoms. All Sb–Sb bond lengths are 3.03 Å. In the second Sb2- site, Sb2- is bonded in a 8-coordinate geometry to four equivalent Er3+ and four equivalent Cu1+ atoms.

36 MATERIALS SCIENCE↗