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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on NdCoGe3 by Materials Project

NdCoGe3 crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. Nd is bonded in a 12-coordinate geometry to five equivalent Co and twelve Ge atoms. There are one shorter (3.31 Å) and four longer (3.48 Å) Nd–Co bond lengths. There are a spread of Nd–Ge bond distances ranging from 3.12–3.36 Å. Co is bonded in a 5-coordinate geometry to five equivalent Nd and five Ge atoms. There are one shorter (2.29 Å) and four longer (2.35 Å) Co–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to four equivalent Nd, two equivalent Co, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.79 Å. In the second Ge site, Ge is bonded in a 1-coordinate geometry to four equivalent Nd, one Co, and four equivalent Ge atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NdCoGe by Materials Project

NdCoGe is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Nd is bonded in a 9-coordinate geometry to four equivalent Co and five equivalent Ge atoms. All Nd–Co bond lengths are 2.98 Å. There are four shorter (3.05 Å) and one longer (3.53 Å) Nd–Ge bond lengths. Co is bonded in a 8-coordinate geometry to four equivalent Nd and four equivalent Ge atoms. All Co–Ge bond lengths are 2.43 Å. Ge is bonded in a 9-coordinate geometry to five equivalent Nd and four equivalent Co atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nd(CoGe)2 by Materials Project

NdCo2Ge2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Nd is bonded in a 8-coordinate geometry to eight equivalent Co and eight equivalent Ge atoms. All Nd–Co bond lengths are 3.27 Å. All Nd–Ge bond lengths are 3.15 Å. Co is bonded to four equivalent Nd and four equivalent Ge atoms to form a mixture of distorted corner, edge, and face-sharing CoNd4Ge4 tetrahedra. All Co–Ge bond lengths are 2.35 Å. Ge is bonded in a 9-coordinate geometry to four equivalent Nd, four equivalent Co, and one Ge atom. The Ge–Ge bond length is 2.72 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nd6Co5Ge2 by Materials Project

Nd6Co5Ge2 crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are four inequivalent Nd sites. In the first Nd site, Nd is bonded in a 7-coordinate geometry to six Co and one Ge atom. There are two shorter (2.89 Å) and four longer (3.06 Å) Nd–Co bond lengths. The Nd–Ge bond length is 3.13 Å. In the second Nd site, Nd is bonded in a 8-coordinate geometry to six Co and two Ge atoms. There are a spread of Nd–Co bond distances ranging from 2.96–3.04 Å. There are one shorter (3.15 Å) and one longer (3.30 Å) Nd–Ge bond lengths. In the third Nd site, Nd is bonded in a 5-coordinate geometry to three Co and two equivalent Ge atoms. There are one shorter (2.71 Å) and two longer (2.83 Å) Nd–Co bond lengths. Both Nd–Ge bond lengths are 3.19 Å. In the fourth Nd site, Nd is bonded in a 7-coordinate geometry to three Co and four Ge atoms. There are a spread of Nd–Co bond distances ranging from 2.72–2.90 Å. There are two shorter (3.22 Å) and two longer (3.29 Å) Nd–Ge bond lengths. There are four inequivalent Co sites. In the first Co site, Co is bonded in a 5-coordinate geometry to three Nd, one Co, and two equivalent Ge atoms. The Co–Co bond length is 2.71 Å. Both Co–Ge bond lengths are 2.41 Å. In the second Co site, Co is bonded in a 10-coordinate geometry to six Nd, two Co, and two equivalent Ge atoms. The Co–Co bond length is 2.29 Å. Both Co–Ge bond lengths are 2.56 Å. In the third Co site, Co is bonded in a 7-coordinate geometry to six Nd and one Co atom. The Co–Co bond length is 2.31 Å. In the fourth Co site, Co is bonded in a 9-coordinate geometry to six Nd and three Co atoms. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to nine Nd atoms. In the second Ge site, Ge is bonded in a 10-coordinate geometry to six Nd and four Co atoms.

36 MATERIALS SCIENCE↗