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DOE OSTI · 1263024

Materials Data on EuCuSeO by Materials Project

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Abstract

EuCuOSe is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one CuSe sheet oriented in the (0, 0, 1) direction and one EuO sheet oriented in the (0, 0, 1) direction. In the CuSe sheet, Cu1+ is bonded to four equivalent Se2- atoms to form a mixture of corner and edge-sharing CuSe4 tetrahedra. All Cu–Se bond lengths are 2.49 Å. Se2- is bonded in a 4-coordinate geometry to four equivalent Cu1+ atoms. In the EuO sheet, Eu3+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. All Eu–O bond lengths are 2.30 Å. O2- is bonded to four equivalent Eu3+ atoms to form a mixture of corner and edge-sharing OEu4 tetrahedra.

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36 MATERIALS SCIENCEcrystal structureCu-Eu-O-SeEuCuSeO

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2020-07-16. Materials Data on EuCuSeO by Materials Project. https://doi.org/10.17188/1263024

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