Sr5Ta4O15
Sr5Ta4O15 is a stable, insulating perovskite oxide used in advanced electronic and dielectric technologies.
About Sr5Ta4O15
Sr5Ta4O15 is a complex perovskite oxide that exhibits robust thermodynamic stability, residing securely on the convex hull. As a wide-gap insulator, it possesses electronic properties that make it highly suitable for specialized dielectric components where minimal conductivity is required.
This material is recognized for its structural versatility, with multiple reported crystal configurations documented across scientific databases. Its stability and insulating nature allow it to function effectively in demanding environments where chemical and structural integrity are paramount.
Key Properties
Cross-validated computational properties for Sr5Ta4O15, 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.
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.
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.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Reported Structures
Lowest-energy structures reported for Sr5Ta4O15, 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 | 3.04 | 0.0000 | -8.900 | 7.25 |
| P-3m1 (No. 164) | trigonal | 2.96 | 0.0139 | -8.887 | 7.24 |
| P-3m1 (No. 164) | — | — | — | — | — |
| P-3m1 (No. 164) | Trigonal | — | — | — | 7.03 |
| P-3m1 (No. 164) | Trigonal | — | — | — | 7.46 |
| P-3m1 (No. 164) | Trigonal | — | — | — | 7.16 |
Applications
Where Sr5Ta4O15 is used.
Frequently Asked Questions
Common questions about Sr5Ta4O15, answered from cross-validated data.
What is Sr5Ta4O15?
Sr5Ta4O15 is a stable, insulating perovskite oxide used in advanced electronic and dielectric technologies.
What is Sr5Ta4O15 used for?
What is the band gap of Sr5Ta4O15?
Is Sr5Ta4O15 a metal, semiconductor, or insulator?
Is Sr5Ta4O15 thermodynamically stable?
What is the crystal structure of Sr5Ta4O15?
What is the density of Sr5Ta4O15?
How many polymorphs of Sr5Ta4O15 are known?
What elements does Sr5Ta4O15 contain?
Where does the data for Sr5Ta4O15 come from?
How It Compares
Within the perovskite oxides class.
Unlike the highly conductive or magnetic perovskites in its class such as LaNiO3 or LaMnO3, Sr5Ta4O15 is characterized by its wide-gap insulating behavior. While many perovskites like BaTiO3 are prized for their ferroelectric properties, Sr5Ta4O15 is primarily valued for its stability and dielectric performance, distinguishing it from the more reactive or transition-metal-heavy members of the family like LaCoO3 or LaFeO3.
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).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
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