O14Pr6Ta2
O14Pr6Ta2 is a thermodynamically stable, insulating perovskite oxide used in advanced materials research.

About O14Pr6Ta2
O14Pr6Ta2 is a complex perovskite oxide characterized by its stable thermodynamic profile and insulating electronic nature. As a member of the diverse perovskite family, it serves as a critical model for understanding how rare-earth elements and transition metals interact within a rigid oxygen-coordinated lattice.
Its structural integrity makes it a compelling candidate for fundamental studies in dielectric and electronic applications. By maintaining a wide band gap, this compound offers unique potential for insulating layers in next-generation microelectronics where stability and performance are paramount.
Key Properties
Cross-validated computational properties for O14Pr6Ta2, 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 O14Pr6Ta2, 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. |
|---|---|---|---|---|---|
| Cmcm (No. 63) | orthorhombic | 3.42 | 0.0000 | -9.248 | 7.38 |
| — | — | — | — | — | 5.30 |
| Cmcm (No. 63) | — | — | — | — | — |
Applications
Where O14Pr6Ta2 is used.
Frequently Asked Questions
Common questions about O14Pr6Ta2, answered from cross-validated data.
What is O14Pr6Ta2?
O14Pr6Ta2 is a thermodynamically stable, insulating perovskite oxide used in advanced materials research.
What is O14Pr6Ta2 used for?
What is the band gap of O14Pr6Ta2?
Is O14Pr6Ta2 a metal, semiconductor, or insulator?
Is O14Pr6Ta2 thermodynamically stable?
What is the crystal structure of O14Pr6Ta2?
What is the density of O14Pr6Ta2?
How many polymorphs of O14Pr6Ta2 are known?
What elements does O14Pr6Ta2 contain?
Where does the data for O14Pr6Ta2 come from?
How It Compares
Within the perovskite oxides class.
Unlike the highly conductive or magnetic perovskites such as LaNiO3 or LaMnO3, O14Pr6Ta2 is distinguished by its robust insulating character. While many class members like BaTiO3 are widely utilized for their ferroelectric properties, this compound is primarily recognized for its structural stability and role as a stable dielectric within the broader perovskite oxide landscape.
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).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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