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DOE OSTI · 1758623

Materials Data on Eu2MgSe4 by Materials Project

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Abstract

MgEu2Se4 is Spinel structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Mg2+ is bonded to four equivalent Se2- atoms to form MgSe4 tetrahedra that share corners with twelve equivalent EuSe6 octahedra. The corner-sharing octahedral tilt angles are 56°. All Mg–Se bond lengths are 2.64 Å. Eu3+ is bonded to six equivalent Se2- atoms to form EuSe6 octahedra that share corners with six equivalent MgSe4 tetrahedra and edges with six equivalent EuSe6 octahedra. All Eu–Se bond lengths are 2.96 Å. Se2- is bonded in a distorted rectangular see-saw-like geometry to one Mg2+ and three equivalent Eu3+ atoms.

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36 MATERIALS SCIENCEcrystal structureEu-Mg-SeEu2MgSe4

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2020-09-03. Materials Data on Eu2MgSe4 by Materials Project. https://doi.org/10.17188/1758623

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