Materials Data on Tm2Nb2O7 by Materials Project
Tm2Nb2O7 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Tm3+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are two shorter (2.22 Å) and six longer (2.39 Å) Tm–O bond lengths. Nb4+ is bonded to six equivalent O2- atoms to form distorted corner-sharing NbO6 octahedra. The corner-sharing octahedral tilt angles are 58°. All Nb–O bond lengths are 2.08 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Tm3+ and two equivalent Nb4+ atoms to form a mixture of distorted edge and corner-sharing OTm2Nb2 tetrahedra. In the second O2- site, O2- is bonded to four equivalent Tm3+ atoms to form a mixture of edge and corner-sharing OTm4 tetrahedra.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Contributing Organization:
- MIT; UC Berkeley; Duke; U Louvain
- DOE Contract Number:
- AC02-05CH11231; EDCBEE
- OSTI ID:
- 1290617
- Report Number(s):
- mp-756751
- Resource Relation:
- Related Information: https://materialsproject.org/citing
- Country of Publication:
- United States
- Language:
- English
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