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Title: Materials Data on BaLaFe2Cu2O11 by Materials Project

Abstract

BaLaFe2Cu2O11 crystallizes in the orthorhombic Pmm2 space group. The structure is three-dimensional. Ba is bonded to twelve O atoms to form BaO12 cuboctahedra that share corners with four equivalent BaO12 cuboctahedra, faces with four equivalent LaO12 cuboctahedra, faces with two equivalent CuO6 octahedra, faces with two equivalent FeO5 square pyramids, and faces with two equivalent CuO5 square pyramids. There are a spread of Ba–O bond distances ranging from 2.70–2.86 Å. La is bonded to twelve O atoms to form LaO12 cuboctahedra that share corners with four equivalent LaO12 cuboctahedra, faces with four equivalent BaO12 cuboctahedra, faces with two equivalent CuO6 octahedra, faces with two equivalent FeO5 square pyramids, and faces with two equivalent CuO5 square pyramids. There are a spread of La–O bond distances ranging from 2.62–2.80 Å. There are two inequivalent Fe sites. In the first Fe site, Fe is bonded in a 5-coordinate geometry to six O atoms. There are a spread of Fe–O bond distances ranging from 1.80–2.55 Å. In the second Fe site, Fe is bonded to five O atoms to form FeO5 square pyramids that share corners with four equivalent CuO6 octahedra, a cornercorner with one CuO5 square pyramid, faces with two equivalent BaO12 cuboctahedra,more » and faces with two equivalent LaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 6°. There is four shorter (1.85 Å) and one longer (1.92 Å) Fe–O bond length. There are two inequivalent Cu sites. In the first Cu site, Cu is bonded to five O atoms to form CuO5 square pyramids that share a cornercorner with one FeO5 square pyramid, faces with two equivalent BaO12 cuboctahedra, and faces with two equivalent LaO12 cuboctahedra. There are four shorter (1.89 Å) and one longer (2.29 Å) Cu–O bond lengths. In the second Cu site, Cu is bonded to six O atoms to form CuO6 octahedra that share corners with four equivalent FeO5 square pyramids, faces with two equivalent BaO12 cuboctahedra, and faces with two equivalent LaO12 cuboctahedra. There are a spread of Cu–O bond distances ranging from 1.85–2.02 Å. There are five inequivalent O sites. In the first O site, O is bonded in a distorted rectangular see-saw-like geometry to one Ba, one La, one Fe, and one Cu atom. In the second O site, O is bonded to two equivalent Ba, two equivalent La, one Fe, and one Cu atom to form a mixture of distorted corner and edge-sharing OBa2La2FeCu octahedra. The corner-sharing octahedra tilt angles range from 6–9°. In the third O site, O is bonded in a distorted linear geometry to one Ba, one La, one Fe, and one Cu atom. In the fourth O site, O is bonded to two equivalent Ba, two equivalent La, one Fe, and one Cu atom to form a mixture of distorted corner and edge-sharing OBa2La2FeCu octahedra. The corner-sharing octahedra tilt angles range from 5–8°. In the fifth O site, O is bonded in a linear geometry to one Fe and one Cu atom.« less

Authors:
Contributors:
Researcher:
Publication Date:
Other Number(s):
mp-705604
DOE Contract Number:  
AC02-05CH11231; EDCBEE
Product Type:
Dataset
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)
Subject:
36 MATERIALS SCIENCE
Keywords:
crystal structure; BaLaFe2Cu2O11; Ba-Cu-Fe-La-O
OSTI Identifier:
1286019
DOI:
10.17188/1286019

Citation Formats

Persson, Kristin, and Project, Materials. Materials Data on BaLaFe2Cu2O11 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1286019.
Persson, Kristin, & Project, Materials. Materials Data on BaLaFe2Cu2O11 by Materials Project. United States. doi:10.17188/1286019.
Persson, Kristin, and Project, Materials. 2020. "Materials Data on BaLaFe2Cu2O11 by Materials Project". United States. doi:10.17188/1286019. https://www.osti.gov/servlets/purl/1286019. Pub date:Sat May 02 00:00:00 EDT 2020
@article{osti_1286019,
title = {Materials Data on BaLaFe2Cu2O11 by Materials Project},
author = {Persson, Kristin and Project, Materials},
abstractNote = {BaLaFe2Cu2O11 crystallizes in the orthorhombic Pmm2 space group. The structure is three-dimensional. Ba is bonded to twelve O atoms to form BaO12 cuboctahedra that share corners with four equivalent BaO12 cuboctahedra, faces with four equivalent LaO12 cuboctahedra, faces with two equivalent CuO6 octahedra, faces with two equivalent FeO5 square pyramids, and faces with two equivalent CuO5 square pyramids. There are a spread of Ba–O bond distances ranging from 2.70–2.86 Å. La is bonded to twelve O atoms to form LaO12 cuboctahedra that share corners with four equivalent LaO12 cuboctahedra, faces with four equivalent BaO12 cuboctahedra, faces with two equivalent CuO6 octahedra, faces with two equivalent FeO5 square pyramids, and faces with two equivalent CuO5 square pyramids. There are a spread of La–O bond distances ranging from 2.62–2.80 Å. There are two inequivalent Fe sites. In the first Fe site, Fe is bonded in a 5-coordinate geometry to six O atoms. There are a spread of Fe–O bond distances ranging from 1.80–2.55 Å. In the second Fe site, Fe is bonded to five O atoms to form FeO5 square pyramids that share corners with four equivalent CuO6 octahedra, a cornercorner with one CuO5 square pyramid, faces with two equivalent BaO12 cuboctahedra, and faces with two equivalent LaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 6°. There is four shorter (1.85 Å) and one longer (1.92 Å) Fe–O bond length. There are two inequivalent Cu sites. In the first Cu site, Cu is bonded to five O atoms to form CuO5 square pyramids that share a cornercorner with one FeO5 square pyramid, faces with two equivalent BaO12 cuboctahedra, and faces with two equivalent LaO12 cuboctahedra. There are four shorter (1.89 Å) and one longer (2.29 Å) Cu–O bond lengths. In the second Cu site, Cu is bonded to six O atoms to form CuO6 octahedra that share corners with four equivalent FeO5 square pyramids, faces with two equivalent BaO12 cuboctahedra, and faces with two equivalent LaO12 cuboctahedra. There are a spread of Cu–O bond distances ranging from 1.85–2.02 Å. There are five inequivalent O sites. In the first O site, O is bonded in a distorted rectangular see-saw-like geometry to one Ba, one La, one Fe, and one Cu atom. In the second O site, O is bonded to two equivalent Ba, two equivalent La, one Fe, and one Cu atom to form a mixture of distorted corner and edge-sharing OBa2La2FeCu octahedra. The corner-sharing octahedra tilt angles range from 6–9°. In the third O site, O is bonded in a distorted linear geometry to one Ba, one La, one Fe, and one Cu atom. In the fourth O site, O is bonded to two equivalent Ba, two equivalent La, one Fe, and one Cu atom to form a mixture of distorted corner and edge-sharing OBa2La2FeCu octahedra. The corner-sharing octahedra tilt angles range from 5–8°. In the fifth O site, O is bonded in a linear geometry to one Fe and one Cu atom.},
doi = {10.17188/1286019},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}

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