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DOE OSTI2020

Materials Data on Eu3Y by Materials Project

Eu3Y is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Eu is bonded to eight equivalent Eu and four equivalent Y atoms to form EuEu8Y4 cuboctahedra that share corners with four equivalent YEu12 cuboctahedra, corners with fourteen equivalent EuEu8Y4 cuboctahedra, edges with six equivalent YEu12 cuboctahedra, edges with twelve equivalent EuEu8Y4 cuboctahedra, faces with four equivalent YEu12 cuboctahedra, and faces with sixteen equivalent EuEu8Y4 cuboctahedra. There are a spread of Eu–Eu bond distances ranging from 3.80–3.93 Å. There are two shorter (3.82 Å) and two longer (3.87 Å) Eu–Y bond lengths. Y is bonded to twelve equivalent Eu atoms to form YEu12 cuboctahedra that share corners with six equivalent YEu12 cuboctahedra, corners with twelve equivalent EuEu8Y4 cuboctahedra, edges with eighteen equivalent EuEu8Y4 cuboctahedra, faces with eight equivalent YEu12 cuboctahedra, and faces with twelve equivalent EuEu8Y4 cuboctahedra.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on EuY3 by Materials Project

EuY3 is alpha La-derived structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Eu is bonded to twelve Y atoms to form EuY12 cuboctahedra that share corners with four equivalent EuY12 cuboctahedra, corners with eight equivalent YEu4Y8 cuboctahedra, edges with eight equivalent EuY12 cuboctahedra, edges with sixteen equivalent YEu4Y8 cuboctahedra, faces with four equivalent EuY12 cuboctahedra, and faces with fourteen YEu4Y8 cuboctahedra. All Eu–Y bond lengths are 3.64 Å. There are two inequivalent Y sites. In the first Y site, Y is bonded to four equivalent Eu and eight Y atoms to form YEu4Y8 cuboctahedra that share corners with twelve equivalent YEu4Y8 cuboctahedra, edges with eight equivalent EuY12 cuboctahedra, edges with sixteen YEu4Y8 cuboctahedra, faces with four equivalent EuY12 cuboctahedra, and faces with fourteen YEu4Y8 cuboctahedra. All Y–Y bond lengths are 3.64 Å. In the second Y site, Y is bonded to four equivalent Eu and eight equivalent Y atoms to form YEu4Y8 cuboctahedra that share corners with four equivalent YEu4Y8 cuboctahedra, corners with eight equivalent EuY12 cuboctahedra, edges with twenty-four YEu4Y8 cuboctahedra, faces with six equivalent EuY12 cuboctahedra, and faces with twelve YEu4Y8 cuboctahedra.

36 MATERIALS SCIENCE↗