Materials Data on Ce2Dy2O7 by Materials Project

doi:10.17188/1282434

Title: Materials Data on Ce2Dy2O7 by Materials Project

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Abstract

Dy2Ce2O7 crystallizes in the orthorhombic Pmma space group. The structure is three-dimensional. there are two inequivalent Dy3+ sites. In the first Dy3+ site, Dy3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Dy–O bond distances ranging from 2.19–2.36 Å. In the second Dy3+ site, Dy3+ is bonded to six O2- atoms to form a mixture of distorted edge and corner-sharing DyO6 octahedra. The corner-sharing octahedral tilt angles are 62°. There are two shorter (2.28 Å) and four longer (2.35 Å) Dy–O bond lengths. There are two inequivalent Ce4+ sites. In the first Ce4+ site, Ce4+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Ce–O bond distances ranging from 2.30–2.63 Å. In the second Ce4+ site, Ce4+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Ce–O bond distances ranging from 2.31–2.43 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Dy3+ and two equivalent Ce4+ atoms to form OCe2Dy2 tetrahedra that share corners with fourteen OCe2Dy2 tetrahedra and edges with five OCeDy3 tetrahedra. In the second O2- site, O2-more »« less

Authors:: The Materials Project

Publication Date:: Sat May 02 00:00:00 EDT 2020

Other Number(s):: mp-673848

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; Ce2Dy2O7; Ce-Dy-O

OSTI Identifier:: 1282434

DOI:: https://doi.org/10.17188/1282434

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                    The Materials Project. Materials Data on Ce2Dy2O7 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1282434.

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                    The Materials Project. Materials Data on Ce2Dy2O7 by Materials Project.  United States.  doi:https://doi.org/10.17188/1282434

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                    The Materials Project. 2020.  
"Materials Data on Ce2Dy2O7 by Materials Project".  United States.  doi:https://doi.org/10.17188/1282434.  https://www.osti.gov/servlets/purl/1282434. Pub date:Sat May 02 00:00:00 EDT 2020

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@article{osti_1282434,

  title        = {Materials Data on Ce2Dy2O7 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Dy2Ce2O7 crystallizes in the orthorhombic Pmma space group. The structure is three-dimensional. there are two inequivalent Dy3+ sites. In the first Dy3+ site, Dy3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Dy–O bond distances ranging from 2.19–2.36 Å. In the second Dy3+ site, Dy3+ is bonded to six O2- atoms to form a mixture of distorted edge and corner-sharing DyO6 octahedra. The corner-sharing octahedral tilt angles are 62°. There are two shorter (2.28 Å) and four longer (2.35 Å) Dy–O bond lengths. There are two inequivalent Ce4+ sites. In the first Ce4+ site, Ce4+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Ce–O bond distances ranging from 2.30–2.63 Å. In the second Ce4+ site, Ce4+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are a spread of Ce–O bond distances ranging from 2.31–2.43 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Dy3+ and two equivalent Ce4+ atoms to form OCe2Dy2 tetrahedra that share corners with fourteen OCe2Dy2 tetrahedra and edges with five OCeDy3 tetrahedra. In the second O2- site, O2- is bonded to three Dy3+ and one Ce4+ atom to form a mixture of distorted edge and corner-sharing OCeDy3 tetrahedra. In the third O2- site, O2- is bonded to two equivalent Dy3+ and two equivalent Ce4+ atoms to form OCe2Dy2 tetrahedra that share corners with fourteen OCeDy3 tetrahedra and edges with five OCe4 tetrahedra. In the fourth O2- site, O2- is bonded to four Ce4+ atoms to form a mixture of edge and corner-sharing OCe4 tetrahedra. In the fifth O2- site, O2- is bonded to one Dy3+ and three Ce4+ atoms to form OCe3Dy tetrahedra that share corners with fourteen OCe2Dy2 tetrahedra and edges with six OCeDy3 tetrahedra.},

  doi          = {10.17188/1282434},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sat May 02 00:00:00 EDT 2020},

  month        = {Sat May 02 00:00:00 EDT 2020}

}

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DOI: https://doi.org/10.17188/1282434

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