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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Gd(CoGe)2 by Materials Project

GdCo2Ge2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Gd is bonded in a 8-coordinate geometry to eight equivalent Co and eight equivalent Ge atoms. All Gd–Co bond lengths are 3.23 Å. All Gd–Ge bond lengths are 3.11 Å. Co is bonded to four equivalent Gd and four equivalent Ge atoms to form a mixture of distorted edge, face, and corner-sharing CoGd4Ge4 tetrahedra. All Co–Ge bond lengths are 2.34 Å. Ge is bonded in a 9-coordinate geometry to four equivalent Gd, four equivalent Co, and one Ge atom. The Ge–Ge bond length is 2.63 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Gd3(CoGe2)2 by Materials Project

Gd3(CoGe2)2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Gd sites. In the first Gd site, Gd is bonded in a 12-coordinate geometry to four equivalent Co and eight Ge atoms. There are a spread of Gd–Co bond distances ranging from 2.89–3.27 Å. There are a spread of Gd–Ge bond distances ranging from 2.99–3.28 Å. In the second Gd site, Gd is bonded in a 6-coordinate geometry to eight Ge atoms. There are a spread of Gd–Ge bond distances ranging from 3.02–3.36 Å. Co is bonded in a 4-coordinate geometry to four equivalent Gd and four Ge atoms. There are a spread of Co–Ge bond distances ranging from 2.36–2.43 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 10-coordinate geometry to six Gd, three equivalent Co, and one Ge atom. The Ge–Ge bond length is 3.07 Å. In the second Ge site, Ge is bonded in a 6-coordinate geometry to six Gd, one Co, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.73 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Gd3Co4Ge13 by Materials Project

Gd3Co4Ge13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Gd is bonded in a 12-coordinate geometry to four equivalent Co and twelve equivalent Ge atoms. All Gd–Co bond lengths are 3.10 Å. All Gd–Ge bond lengths are 3.09 Å. Co is bonded in a 6-coordinate geometry to three equivalent Gd and six equivalent Ge atoms. All Co–Ge bond lengths are 2.41 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to three equivalent Gd, two equivalent Co, and four Ge atoms. There are a spread of Ge–Ge bond distances ranging from 2.69–3.00 Å. In the second Ge site, Ge is bonded in a cuboctahedral geometry to twelve equivalent Ge atoms.

36 MATERIALS SCIENCE↗