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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Ho(CoGe)2 by Materials Project

HoCo2Ge2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Ho is bonded in a 8-coordinate geometry to eight equivalent Co and eight equivalent Ge atoms. All Ho–Co bond lengths are 3.21 Å. All Ho–Ge bond lengths are 3.08 Å. Co is bonded to four equivalent Ho and four equivalent Ge atoms to form a mixture of distorted corner, edge, and face-sharing CoHo4Ge4 tetrahedra. All Co–Ge bond lengths are 2.33 Å. Ge is bonded in a 9-coordinate geometry to four equivalent Ho, four equivalent Co, and one Ge atom. The Ge–Ge bond length is 2.57 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ho2CoGe2 by Materials Project

Ho2CoGe2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Ho sites. In the first Ho site, Ho is bonded in a 6-coordinate geometry to two equivalent Co and six Ge atoms. Both Ho–Co bond lengths are 3.16 Å. There are a spread of Ho–Ge bond distances ranging from 2.90–3.08 Å. In the second Ho site, Ho is bonded in a 2-coordinate geometry to four equivalent Co and seven Ge atoms. There are a spread of Ho–Co bond distances ranging from 3.02–3.08 Å. There are a spread of Ho–Ge bond distances ranging from 2.91–3.22 Å. Co is bonded in a 10-coordinate geometry to six Ho and four Ge atoms. There are a spread of Co–Ge bond distances ranging from 2.39–2.54 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to seven Ho, one Co, and one Ge atom. The Ge–Ge bond length is 2.68 Å. In the second Ge site, Ge is bonded in a 10-coordinate geometry to six Ho, three equivalent Co, and one Ge atom. The Ge–Ge bond length is 2.82 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ho3Co4Ge13 by Materials Project

Ho3Co4Ge13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Ho is bonded in a 12-coordinate geometry to four equivalent Co and twelve equivalent Ge atoms. All Ho–Co bond lengths are 3.11 Å. There are four shorter (3.09 Å) and eight longer (3.10 Å) Ho–Ge bond lengths. Co is bonded in a 6-coordinate geometry to three equivalent Ho 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 Ho, two equivalent Co, and four Ge atoms. There are a spread of Ge–Ge bond distances ranging from 2.71–3.01 Å. In the second Ge site, Ge is bonded in a cuboctahedral geometry to twelve equivalent Ge atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HoCoGe by Materials Project

HoCoGe crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ho is bonded in a 12-coordinate geometry to four equivalent Co and six equivalent Ge atoms. There are a spread of Ho–Co bond distances ranging from 2.88–3.00 Å. There are a spread of Ho–Ge bond distances ranging from 2.95–3.18 Å. Co is bonded in a 10-coordinate geometry to four equivalent Ho and four equivalent Ge atoms. There are a spread of Co–Ge bond distances ranging from 2.45–2.59 Å. Ge is bonded in a 10-coordinate geometry to six equivalent Ho and four equivalent Co atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ho3(CoGe2)2 by Materials Project

Ho3(CoGe2)2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Ho sites. In the first Ho site, Ho is bonded in a 12-coordinate geometry to four equivalent Co and eight Ge atoms. There are a spread of Ho–Co bond distances ranging from 2.86–3.20 Å. There are a spread of Ho–Ge bond distances ranging from 2.95–3.24 Å. In the second Ho site, Ho is bonded in a 6-coordinate geometry to eight Ge atoms. There are a spread of Ho–Ge bond distances ranging from 2.96–3.32 Å. Co is bonded in a 4-coordinate geometry to four equivalent Ho and four Ge atoms. There are a spread of Co–Ge bond distances ranging from 2.34–2.43 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 10-coordinate geometry to six Ho, three equivalent Co, and one Ge atom. The Ge–Ge bond length is 2.96 Å. In the second Ge site, Ge is bonded in a 6-coordinate geometry to six Ho, one Co, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.71 Å.

36 MATERIALS SCIENCE↗