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Title: Materials Data on Tb2FeSi2 by Materials Project

Abstract

Tb2FeSi2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Tb3+ sites. In the first Tb3+ site, Tb3+ is bonded to six Si4- atoms to form distorted TbSi6 pentagonal pyramids that share corners with four equivalent TbSi6 pentagonal pyramids, corners with four equivalent FeSi4 tetrahedra, edges with six equivalent TbSi6 pentagonal pyramids, edges with two equivalent FeSi4 tetrahedra, and a faceface with one TbSi6 pentagonal pyramid. There are a spread of Tb–Si bond distances ranging from 2.85–3.23 Å. In the second Tb3+ site, Tb3+ is bonded in a 7-coordinate geometry to seven Si4- atoms. There are a spread of Tb–Si bond distances ranging from 2.90–3.25 Å. Fe2+ is bonded to four Si4- atoms to form FeSi4 tetrahedra that share corners with four equivalent TbSi6 pentagonal pyramids, corners with two equivalent FeSi4 tetrahedra, edges with two equivalent TbSi6 pentagonal pyramids, and edges with two equivalent FeSi4 tetrahedra. There are a spread of Fe–Si bond distances ranging from 2.33–2.46 Å. There are two inequivalent Si4- sites. In the first Si4- site, Si4- is bonded in a 9-coordinate geometry to seven Tb3+, one Fe2+, and one Si4- atom. The Si–Si bond length is 2.53 Å. In themore » second Si4- site, Si4- is bonded in a 10-coordinate geometry to six Tb3+ and three equivalent Fe2+ atoms.« less

Authors:
Publication Date:
Other Number(s):
mp-31094
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; Tb2FeSi2; Fe-Si-Tb
OSTI Identifier:
1205420
DOI:
https://doi.org/10.17188/1205420

Citation Formats

The Materials Project. Materials Data on Tb2FeSi2 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1205420.
The Materials Project. Materials Data on Tb2FeSi2 by Materials Project. United States. doi:https://doi.org/10.17188/1205420
The Materials Project. 2020. "Materials Data on Tb2FeSi2 by Materials Project". United States. doi:https://doi.org/10.17188/1205420. https://www.osti.gov/servlets/purl/1205420. Pub date:Thu Jul 16 00:00:00 EDT 2020
@article{osti_1205420,
title = {Materials Data on Tb2FeSi2 by Materials Project},
author = {The Materials Project},
abstractNote = {Tb2FeSi2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Tb3+ sites. In the first Tb3+ site, Tb3+ is bonded to six Si4- atoms to form distorted TbSi6 pentagonal pyramids that share corners with four equivalent TbSi6 pentagonal pyramids, corners with four equivalent FeSi4 tetrahedra, edges with six equivalent TbSi6 pentagonal pyramids, edges with two equivalent FeSi4 tetrahedra, and a faceface with one TbSi6 pentagonal pyramid. There are a spread of Tb–Si bond distances ranging from 2.85–3.23 Å. In the second Tb3+ site, Tb3+ is bonded in a 7-coordinate geometry to seven Si4- atoms. There are a spread of Tb–Si bond distances ranging from 2.90–3.25 Å. Fe2+ is bonded to four Si4- atoms to form FeSi4 tetrahedra that share corners with four equivalent TbSi6 pentagonal pyramids, corners with two equivalent FeSi4 tetrahedra, edges with two equivalent TbSi6 pentagonal pyramids, and edges with two equivalent FeSi4 tetrahedra. There are a spread of Fe–Si bond distances ranging from 2.33–2.46 Å. There are two inequivalent Si4- sites. In the first Si4- site, Si4- is bonded in a 9-coordinate geometry to seven Tb3+, one Fe2+, and one Si4- atom. The Si–Si bond length is 2.53 Å. In the second Si4- site, Si4- is bonded in a 10-coordinate geometry to six Tb3+ and three equivalent Fe2+ atoms.},
doi = {10.17188/1205420},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jul 16 00:00:00 EDT 2020},
month = {Thu Jul 16 00:00:00 EDT 2020}
}