Cd4Nb4O14
Cadmium niobate is a complex oxide material that exhibits interesting dielectric and ferroelectric properties. It is primarily studied for its potential utility in advanced electronic components and solid-state devices.
Overview
Key Properties
Cross-validated computational properties for Cd4Nb4O14, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
1.71–1.94 eV
Range across DFT structures
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
0.005 eV/atom
Best (lowest) across sources
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
Near hull (likely stable)
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
15
3 databases, 2 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for Cd4Nb4O14, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| Ima2 (No. 46) | orthorhombic | 1.94 | 0.0053 | -7.619 | 6.03 |
| Fd-3m (No. 227) | cubic | 1.88 | 0.0097 | -7.614 | 6.06 |
| Fd-3m (No. 227) | cubic | 1.71 | 0.2767 | -7.347 | 6.42 |
| — | — | — | — | — | 5.85 |
| Fd-3m (No. 227) | — | — | — | — | — |
| Fd-3m (No. 227) | — | — | — | — | — |
| Fd-3m (No. 227) | — | — | — | — | — |
| Fd-3m (No. 227) | — | — | — | — | — |
| Fd-3m (No. 227) | — | — | — | — | — |
| Fd-3m (No. 227) | — | — | — | — | — |
| Ima2 (No. 46) | — | — | — | — | — |
| Fd-3m (No. 227) | — | — | — | — | — |
Uses
Applications
Where Cd4Nb4O14 is used.
Dielectric resonatorsFerroelectric researchElectronic ceramics
Reference
Frequently Asked Questions
Common questions about Cd4Nb4O14, answered from cross-validated data.
What is Cd4Nb4O14?
Cadmium niobate is a complex oxide material that exhibits interesting dielectric and ferroelectric properties. It is primarily studied for its potential utility in advanced electronic components and solid-state devices.
More questions
What is Cd4Nb4O14 used for?
Cd4Nb4O14 is used in dielectric resonators, ferroelectric research, and electronic ceramics.
What is the band gap of Cd4Nb4O14?
Cd4Nb4O14 has a DFT-computed band gap of 1.71–1.94 eV across 15 reported structures.
Is Cd4Nb4O14 a metal, semiconductor, or insulator?
With a band gap up to 1.94 eV it is a semiconductor.
Is Cd4Nb4O14 thermodynamically stable?
Cd4Nb4O14 has a lowest energy above hull of 0.005 eV/atom (near hull (likely stable)).
What is the crystal structure of Cd4Nb4O14?
The lowest-energy reported polymorph of Cd4Nb4O14 is orthorhombic symmetry, space group Ima2 (No. 46).
What is the density of Cd4Nb4O14?
The computed density of the ground-state structure of Cd4Nb4O14 is 6.03 g/cm³.
How many polymorphs of Cd4Nb4O14 are known?
15 structures of Cd4Nb4O14 are reported across 3 databases, spanning 2 distinct space groups.
What elements does Cd4Nb4O14 contain?
Cd4Nb4O14 contains Cd, Nb, and O (3 elements).
Where does the data for Cd4Nb4O14 come from?
Cd4Nb4O14 data is cross-referenced from materials_project, omat24, aflow.
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Related Compounds
Other Transparent Conducting Oxides in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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