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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Pr(AlZn)2 by Materials Project

Pr(ZnAl)2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Pr is bonded in a 8-coordinate geometry to eight equivalent Zn and eight equivalent Al atoms. All Pr–Zn bond lengths are 3.23 Å. All Pr–Al bond lengths are 3.47 Å. Zn is bonded in a 9-coordinate geometry to four equivalent Pr, one Zn, and four equivalent Al atoms. The Zn–Zn bond length is 2.47 Å. All Zn–Al bond lengths are 2.60 Å. Al is bonded to four equivalent Pr and four equivalent Zn atoms to form a mixture of distorted corner, edge, and face-sharing AlPr4Zn4 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PrAlZn by Materials Project

PrZnAl crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Pr is bonded in a 12-coordinate geometry to six equivalent Zn and six equivalent Al atoms. There are a spread of Pr–Zn bond distances ranging from 3.12–3.42 Å. There are a spread of Pr–Al bond distances ranging from 3.18–3.41 Å. Zn is bonded in a 10-coordinate geometry to six equivalent Pr, one Zn, and three equivalent Al atoms. The Zn–Zn bond length is 2.68 Å. There are two shorter (2.68 Å) and one longer (2.96 Å) Zn–Al bond lengths. Al is bonded in a 10-coordinate geometry to six equivalent Pr, three equivalent Zn, and one Al atom. The Al–Al bond length is 2.63 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pr2AlZn by Materials Project

Pr2ZnAl is Heusler-like structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Pr is bonded in a body-centered cubic geometry to four equivalent Zn and four equivalent Al atoms. All Pr–Zn bond lengths are 3.22 Å. All Pr–Al bond lengths are 3.25 Å. Zn is bonded in a body-centered cubic geometry to eight equivalent Pr atoms. Al is bonded in a body-centered cubic geometry to eight equivalent Pr atoms.

36 MATERIALS SCIENCE↗