Nb4O15Sr5
Strontium niobate · Sr5Nb4O15
Strontium niobate is a ceramic material known for its dielectric properties. It is primarily utilized in the development of advanced electronic components and microwave communication devices.
Overview
Key Properties
Cross-validated computational properties for Strontium niobate, 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.
2.56–2.98 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.
0.000 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.
On hull (stable)
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
5
3 databases, 3 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for Nb4O15Sr5, 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. |
|---|---|---|---|---|---|
| P-3c1 (No. 165) | trigonal | 2.80 | 0.0000 | -8.427 | 5.36 |
| P-3m1 (No. 164) | trigonal | 2.98 | 0.0187 | -8.408 | 5.35 |
| C2/m (No. 12) | monoclinic | 2.56 | 0.0198 | -8.407 | 5.23 |
| — | — | — | — | — | 5.23 |
| — | — | — | — | — | — |
Uses
Applications
Where Strontium niobate is used.
Microwave resonatorsDielectric ceramicsElectronic capacitors
Reference
Frequently Asked Questions
Common questions about Strontium niobate, answered from cross-validated data.
What is Nb4O15Sr5?
Strontium niobate is a ceramic material known for its dielectric properties. It is primarily utilized in the development of advanced electronic components and microwave communication devices.
What is Nb4O15Sr5 used for?
Strontium niobate (Nb4O15Sr5) is used in microwave resonators, dielectric ceramics, and electronic capacitors.
What is the band gap of Nb4O15Sr5?
Strontium niobate (Nb4O15Sr5) has a DFT-computed band gap of 2.56–2.98 eV across 5 reported structures.
Is Nb4O15Sr5 a metal, semiconductor, or insulator?
With a band gap up to 2.98 eV it is a semiconductor.
Is Nb4O15Sr5 thermodynamically stable?
Yes — Strontium niobate (Nb4O15Sr5) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of Nb4O15Sr5?
The lowest-energy reported polymorph of Strontium niobate (Nb4O15Sr5) is trigonal symmetry, space group P-3c1 (No. 165).
What is the density of Nb4O15Sr5?
The computed density of the ground-state structure of Strontium niobate (Nb4O15Sr5) is 5.36 g/cm³.
How many polymorphs of Nb4O15Sr5 are known?
5 structures of Nb4O15Sr5 are reported across 3 databases, spanning 3 distinct space groups.
What elements does Nb4O15Sr5 contain?
Strontium niobate (Nb4O15Sr5) contains Nb, O, and Sr (3 elements).
Where does the data for Nb4O15Sr5 come from?
Nb4O15Sr5 data is cross-referenced from materials_project, omat24, alexandria.
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Related Compounds
Other Perovskite 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).
- alexandria — Data from alexandria.
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