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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on La(AlZn)2 by Materials Project

Al2LaZn2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. La is bonded in a 8-coordinate geometry to eight equivalent Zn and eight equivalent Al atoms. All La–Zn bond lengths are 3.26 Å. All La–Al bond lengths are 3.49 Å. Zn is bonded in a 9-coordinate geometry to four equivalent La, one Zn, and four equivalent Al atoms. The Zn–Zn bond length is 2.50 Å. All Zn–Al bond lengths are 2.61 Å. Al is bonded to four equivalent La and four equivalent Zn atoms to form a mixture of distorted corner, edge, and face-sharing AlLa4Zn4 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on La2AlZn by Materials Project

La2ZnAl crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two La2ZnAl ribbons oriented in the (1, 0, 0) direction. La is bonded in a linear geometry to one Zn and one Al atom. The La–Zn bond length is 2.75 Å. The La–Al bond length is 2.80 Å. Zn is bonded in a linear geometry to two equivalent La atoms. Al is bonded in a linear geometry to two equivalent La atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LaAlZn by Materials Project

ZnAlLa crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. La is bonded in a 12-coordinate geometry to six equivalent Zn and six equivalent Al atoms. There are a spread of La–Zn bond distances ranging from 3.15–3.48 Å. There are a spread of La–Al bond distances ranging from 3.21–3.48 Å. Zn is bonded in a 10-coordinate geometry to six equivalent La, one Zn, and three equivalent Al atoms. The Zn–Zn bond length is 2.71 Å. There are two shorter (2.71 Å) and one longer (2.97 Å) Zn–Al bond lengths. Al is bonded in a 10-coordinate geometry to six equivalent La, three equivalent Zn, and one Al atom. The Al–Al bond length is 2.65 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on La2AlZn by Materials Project

La2ZnAl is Heusler-like structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. La is bonded in a body-centered cubic geometry to four equivalent Zn and four equivalent Al atoms. All La–Zn bond lengths are 3.27 Å. All La–Al bond lengths are 3.28 Å. Zn is bonded in a body-centered cubic geometry to eight equivalent La atoms. Al is bonded in a body-centered cubic geometry to eight equivalent La atoms.

36 MATERIALS SCIENCE↗