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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Sm(NiGe)3 by Materials Project

Sm(NiGe)3 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sm is bonded in a 4-coordinate geometry to eight Ni and eight Ge atoms. There are four shorter (3.20 Å) and four longer (3.24 Å) Sm–Ni bond lengths. There are four shorter (3.12 Å) and four longer (3.20 Å) Sm–Ge bond lengths. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded in a 9-coordinate geometry to four equivalent Sm and five Ge atoms. There are one shorter (2.33 Å) and four longer (2.39 Å) Ni–Ge bond lengths. In the second Ni site, Ni is bonded in a 8-coordinate geometry to two equivalent Sm and six Ge atoms. There are four shorter (2.49 Å) and two longer (2.51 Å) Ni–Ge bond lengths. There are four inequivalent Ge sites. In the first Ge site, Ge is bonded in a body-centered cubic geometry to eight equivalent Ni atoms. In the second Ge site, Ge is bonded in a body-centered cubic geometry to eight equivalent Ni atoms. In the third Ge site, Ge is bonded in a 9-coordinate geometry to four equivalent Sm and five Ni atoms. In the fourth Ge site, Ge is bonded in a 4-coordinate geometry to four equivalent Sm and four equivalent Ni atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sm(NiGe)2 by Materials Project

Sm(NiGe)2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sm is bonded in a 8-coordinate geometry to eight equivalent Ni and eight equivalent Ge atoms. All Sm–Ni bond lengths are 3.21 Å. All Sm–Ge bond lengths are 3.18 Å. Ni is bonded in a 4-coordinate geometry to four equivalent Sm and four equivalent Ge atoms. All Ni–Ge bond lengths are 2.37 Å. Ge is bonded in a 9-coordinate geometry to four equivalent Sm, four equivalent Ni, and one Ge atom. The Ge–Ge bond length is 2.57 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SmNiGe3 by Materials Project

SmNiGe3 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Sm is bonded in a 4-coordinate geometry to four equivalent Ni and ten Ge atoms. All Sm–Ni bond lengths are 3.20 Å. There are a spread of Sm–Ge bond distances ranging from 3.11–3.25 Å. Ni is bonded in a 9-coordinate geometry to four equivalent Sm and five Ge atoms. There are one shorter (2.33 Å) and four longer (2.37 Å) Ni–Ge bond lengths. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to two equivalent Sm, two equivalent Ni, and five Ge atoms. There are one shorter (2.49 Å) and four longer (2.93 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a 1-coordinate geometry to six equivalent Sm, one Ni, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.54 Å. In the third Ge site, Ge is bonded in a 2-coordinate geometry to two equivalent Sm, two equivalent Ni, and five Ge atoms. The Ge–Ge bond length is 2.49 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SmNiGe2 by Materials Project

SmNiGe2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Sm is bonded in a 4-coordinate geometry to four equivalent Ni and ten Ge atoms. All Sm–Ni bond lengths are 3.22 Å. There are a spread of Sm–Ge bond distances ranging from 3.16–3.26 Å. Ni is bonded in a 5-coordinate geometry to four equivalent Sm and five Ge atoms. There are one shorter (2.32 Å) and four longer (2.40 Å) Ni–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 1-coordinate geometry to six equivalent Sm, one Ni, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.54 Å. In the second Ge site, Ge is bonded in a 4-coordinate geometry to four equivalent Sm and four equivalent Ni atoms.

36 MATERIALS SCIENCE↗