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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on ErGePt by Materials Project

ErPtGe crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Er is bonded in a 12-coordinate geometry to six equivalent Pt and six equivalent Ge atoms. There are a spread of Er–Pt bond distances ranging from 2.99–3.24 Å. There are a spread of Er–Ge bond distances ranging from 3.01–3.22 Å. Pt is bonded in a 10-coordinate geometry to six equivalent Er and four equivalent Ge atoms. There are a spread of Pt–Ge bond distances ranging from 2.55–2.77 Å. Ge is bonded in a 10-coordinate geometry to six equivalent Er and four equivalent Pt atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ErGe2Pt by Materials Project

ErPtGe2 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. there are two inequivalent Er sites. In the first Er site, Er is bonded in a 12-coordinate geometry to six equivalent Pt and eight Ge atoms. There are four shorter (3.20 Å) and two longer (3.33 Å) Er–Pt bond lengths. There are six shorter (3.00 Å) and two longer (3.07 Å) Er–Ge bond lengths. In the second Er site, Er is bonded in a 12-coordinate geometry to four equivalent Pt and ten Ge atoms. All Er–Pt bond lengths are 3.25 Å. There are a spread of Er–Ge bond distances ranging from 3.23–3.46 Å. Pt is bonded in a 10-coordinate geometry to five Er and five Ge atoms. There are a spread of Pt–Ge bond distances ranging from 2.49–2.65 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 8-coordinate geometry to four Er, three equivalent Pt, and one Ge atom. The Ge–Ge bond length is 2.62 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to six Er, two equivalent Pt, and one Ge atom. The Ge–Ge bond length is 2.43 Å. In the third Ge site, Ge is bonded in a 2-coordinate geometry to four equivalent Er, two equivalent Pt, and one Ge atom. The Ge–Ge bond length is 2.41 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Er2(GePt3)3 by Materials Project

Er2(Pt3Ge)3 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Er3+ is bonded in a 11-coordinate geometry to eleven Pt2- atoms. There are a spread of Er–Pt bond distances ranging from 2.96–3.21 Å. There are five inequivalent Pt2- sites. In the first Pt2- site, Pt2- is bonded in a 12-coordinate geometry to three equivalent Er3+ and three Ge4+ atoms. There are a spread of Pt–Ge bond distances ranging from 2.55–2.71 Å. In the second Pt2- site, Pt2- is bonded in a 2-coordinate geometry to two equivalent Er3+ and two Ge4+ atoms. There are one shorter (2.47 Å) and one longer (2.48 Å) Pt–Ge bond lengths. In the third Pt2- site, Pt2- is bonded in a 12-coordinate geometry to three equivalent Er3+ and three Ge4+ atoms. There are a spread of Pt–Ge bond distances ranging from 2.52–2.73 Å. In the fourth Pt2- site, Pt2- is bonded in a 2-coordinate geometry to two equivalent Er3+ and two equivalent Ge4+ atoms. Both Pt–Ge bond lengths are 2.48 Å. In the fifth Pt2- site, Pt2- is bonded in a 5-coordinate geometry to two equivalent Er3+ and three Ge4+ atoms. There are a spread of Pt–Ge bond distances ranging from 2.63–2.91 Å. There are two inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded in a distorted hexagonal bipyramidal geometry to eight Pt2- atoms. In the second Ge4+ site, Ge4+ is bonded in a 8-coordinate geometry to eight Pt2- atoms.

36 MATERIALS SCIENCE↗