Materials Data on Ba4GeAs4 by Materials Project

doi:10.17188/1189874

Title: Materials Data on Ba4GeAs4 by Materials Project

Abstract

Ba4GeAs4 crystallizes in the cubic P-43n space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded to six As3- atoms to form BaAs6 octahedra that share corners with six equivalent BaAs6 octahedra, corners with three equivalent GeAs4 tetrahedra, edges with twelve BaAs6 octahedra, and a faceface with one GeAs4 tetrahedra. The corner-sharing octahedra tilt angles range from 15–16°. There are three shorter (3.43 Å) and three longer (3.47 Å) Ba–As bond lengths. In the second Ba2+ site, Ba2+ is bonded to six As3- atoms to form BaAs6 octahedra that share corners with six BaAs6 octahedra, corners with three GeAs4 tetrahedra, edges with twelve BaAs6 octahedra, and a faceface with one GeAs4 tetrahedra. The corner-sharing octahedra tilt angles range from 15–18°. There are a spread of Ba–As bond distances ranging from 3.39–3.48 Å. There are two inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to four equivalent As3- atoms to form GeAs4 tetrahedra that share corners with twelve equivalent BaAs6 octahedra and faces with four equivalent BaAs6 octahedra. The corner-sharing octahedral tilt angles are 53°. All Ge–As bond lengths are 2.51 Å. In the second Ge4+ site, Ge4+more »« less

Publication Date:: 2020-05-29

Other Number(s):: mp-14002

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; Ba4GeAs4; As-Ba-Ge

OSTI Identifier:: 1189874

DOI:: https://doi.org/10.17188/1189874

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                    The Materials Project. Materials Data on Ba4GeAs4 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1189874.

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                    The Materials Project. Materials Data on Ba4GeAs4 by Materials Project.  United States.  doi:https://doi.org/10.17188/1189874

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                    The Materials Project. 2020.  
"Materials Data on Ba4GeAs4 by Materials Project".  United States.  doi:https://doi.org/10.17188/1189874.  https://www.osti.gov/servlets/purl/1189874. Pub date:Fri May 29 00:00:00 EDT 2020

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@article{osti_1189874,

  title        = {Materials Data on Ba4GeAs4 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Ba4GeAs4 crystallizes in the cubic P-43n space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded to six As3- atoms to form BaAs6 octahedra that share corners with six equivalent BaAs6 octahedra, corners with three equivalent GeAs4 tetrahedra, edges with twelve BaAs6 octahedra, and a faceface with one GeAs4 tetrahedra. The corner-sharing octahedra tilt angles range from 15–16°. There are three shorter (3.43 Å) and three longer (3.47 Å) Ba–As bond lengths. In the second Ba2+ site, Ba2+ is bonded to six As3- atoms to form BaAs6 octahedra that share corners with six BaAs6 octahedra, corners with three GeAs4 tetrahedra, edges with twelve BaAs6 octahedra, and a faceface with one GeAs4 tetrahedra. The corner-sharing octahedra tilt angles range from 15–18°. There are a spread of Ba–As bond distances ranging from 3.39–3.48 Å. There are two inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to four equivalent As3- atoms to form GeAs4 tetrahedra that share corners with twelve equivalent BaAs6 octahedra and faces with four equivalent BaAs6 octahedra. The corner-sharing octahedral tilt angles are 53°. All Ge–As bond lengths are 2.51 Å. In the second Ge4+ site, Ge4+ is bonded to four equivalent As3- atoms to form GeAs4 tetrahedra that share corners with twelve BaAs6 octahedra and faces with four equivalent BaAs6 octahedra. The corner-sharing octahedra tilt angles range from 49–52°. All Ge–As bond lengths are 2.52 Å. There are two inequivalent As3- sites. In the first As3- site, As3- is bonded to six Ba2+ and one Ge4+ atom to form a mixture of distorted edge, face, and corner-sharing AsBa6Ge pentagonal bipyramids. In the second As3- site, As3- is bonded to six Ba2+ and one Ge4+ atom to form a mixture of distorted edge, face, and corner-sharing AsBa6Ge pentagonal bipyramids.},

  doi          = {10.17188/1189874},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {5}

}

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The Materials Project

Harnessing the power of supercomputing and state of the art electronic structure methods, the Materials Project provides open web-based access to computed information on known and predicted materials as well as powerful analysis tools to inspire and design novel materials. Experimental research can be targeted to the most promising compounds from computational data sets. Supercomputing clusters at national laboratories provide the infrastructure that enables computations, data, and algorithms to run at unparalleled speed. Researchers are be able to data-mine scientific trends in materials properties. By providing materials researchers with the information they need to design better, the Materials Project aimsmore »

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Research Org:	Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Argonne National Lab. (ANL), Argonne, IL (United States); University of Califorinia San Diego Supercomputing Center (SDSC), San Diego, CA (United States)
Sponsoring Org:	USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)