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Title: Materials Data on Ba2ErCuNi2O7 by Materials Project

Abstract

Ba2ErNi2CuO7 crystallizes in the orthorhombic Pmmm space group. The structure is three-dimensional. Ba2+ is bonded in a distorted q6 geometry to ten O2- atoms. There are a spread of Ba–O bond distances ranging from 2.78–3.00 Å. Er3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are four shorter (2.40 Å) and four longer (2.42 Å) Er–O bond lengths. Ni3+ is bonded to five O2- atoms to form corner-sharing NiO5 square pyramids. There are a spread of Ni–O bond distances ranging from 1.99–2.08 Å. Cu1+ is bonded in a square co-planar geometry to four O2- atoms. There is two shorter (1.88 Å) and two longer (1.98 Å) Cu–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ba2+, two equivalent Er3+, and two equivalent Ni3+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ba2+, two equivalent Er3+, and two equivalent Ni3+ atoms. In the third O2- site, O2- is bonded to four equivalent Ba2+, one Ni3+, and one Cu1+ atom to form distorted OBa4CuNi octahedra that share corners with nine OBa4CuNi octahedra, edges with fourmore » equivalent OBa4CuNi octahedra, and faces with two equivalent OBa4Cu2 octahedra. The corner-sharing octahedra tilt angles range from 0–65°. In the fourth O2- site, O2- is bonded to four equivalent Ba2+ and two equivalent Cu1+ atoms to form distorted OBa4Cu2 octahedra that share corners with ten OBa4CuNi octahedra, edges with two equivalent OBa4Cu2 octahedra, and faces with four equivalent OBa4CuNi octahedra. The corner-sharing octahedra tilt angles range from 0–65°.« less

Authors:
Publication Date:
Other Number(s):
mp-1214712
DOE Contract Number:  
AC02-05CH11231; EDCBEE
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Collaborations:
MIT; UC Berkeley; Duke; U Louvain
Subject:
36 MATERIALS SCIENCE
Keywords:
crystal structure; Ba2ErCuNi2O7; Ba-Cu-Er-Ni-O
OSTI Identifier:
1674849
DOI:
https://doi.org/10.17188/1674849

Citation Formats

The Materials Project. Materials Data on Ba2ErCuNi2O7 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1674849.
The Materials Project. Materials Data on Ba2ErCuNi2O7 by Materials Project. United States. doi:https://doi.org/10.17188/1674849
The Materials Project. 2020. "Materials Data on Ba2ErCuNi2O7 by Materials Project". United States. doi:https://doi.org/10.17188/1674849. https://www.osti.gov/servlets/purl/1674849. Pub date:Sun May 03 00:00:00 EDT 2020
@article{osti_1674849,
title = {Materials Data on Ba2ErCuNi2O7 by Materials Project},
author = {The Materials Project},
abstractNote = {Ba2ErNi2CuO7 crystallizes in the orthorhombic Pmmm space group. The structure is three-dimensional. Ba2+ is bonded in a distorted q6 geometry to ten O2- atoms. There are a spread of Ba–O bond distances ranging from 2.78–3.00 Å. Er3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are four shorter (2.40 Å) and four longer (2.42 Å) Er–O bond lengths. Ni3+ is bonded to five O2- atoms to form corner-sharing NiO5 square pyramids. There are a spread of Ni–O bond distances ranging from 1.99–2.08 Å. Cu1+ is bonded in a square co-planar geometry to four O2- atoms. There is two shorter (1.88 Å) and two longer (1.98 Å) Cu–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ba2+, two equivalent Er3+, and two equivalent Ni3+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ba2+, two equivalent Er3+, and two equivalent Ni3+ atoms. In the third O2- site, O2- is bonded to four equivalent Ba2+, one Ni3+, and one Cu1+ atom to form distorted OBa4CuNi octahedra that share corners with nine OBa4CuNi octahedra, edges with four equivalent OBa4CuNi octahedra, and faces with two equivalent OBa4Cu2 octahedra. The corner-sharing octahedra tilt angles range from 0–65°. In the fourth O2- site, O2- is bonded to four equivalent Ba2+ and two equivalent Cu1+ atoms to form distorted OBa4Cu2 octahedra that share corners with ten OBa4CuNi octahedra, edges with two equivalent OBa4Cu2 octahedra, and faces with four equivalent OBa4CuNi octahedra. The corner-sharing octahedra tilt angles range from 0–65°.},
doi = {10.17188/1674849},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun May 03 00:00:00 EDT 2020},
month = {Sun May 03 00:00:00 EDT 2020}
}