O8Sr2W2
O8Sr2W2 is a thermodynamically stable, wide-gap insulating oxide composed of strontium, tungsten, and oxygen.
About O8Sr2W2
O8Sr2W2 is a complex oxide composed of strontium, tungsten, and oxygen. As a thermodynamically stable phase located on the convex hull, it represents a robust crystalline arrangement that maintains structural integrity under standard conditions. Its electronic character is defined as a wide-gap insulator, making it a subject of interest for fundamental studies in dielectric and insulating material science. The compound exhibits significant structural diversity, with multiple reported configurations across various databases, highlighting its versatile potential in solid-state chemistry. This structural richness suggests that O8Sr2W2 can adopt various symmetries, which is critical for tailoring its physical properties for specific technological applications. Its stability and insulating nature position it as a reliable candidate for research into advanced ceramic and electronic materials.
Key Properties
Cross-validated computational properties for O8Sr2W2, aggregated across 4 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 O8Sr2W2, 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. |
|---|---|---|---|---|---|
| I41/a (No. 88) | tetragonal | 4.66 | 0.0000 | -8.486 | 6.31 |
| I41/a (No. 88) | tetragonal | — | — | — | 3.21 |
| I41/a (No. 88) | — | — | — | — | — |
| — | — | — | — | — | 6.39 |
| I41/a (No. 88) | — | — | — | — | — |
| I41/a (No. 88) | — | — | — | — | — |
| I41/a (No. 88) | — | — | — | — | — |
| I41/a (No. 88) | — | — | — | — | — |
| I41/a (No. 88) | — | — | — | — | — |
| — | — | — | — | — | 6.48 |
Applications
Where O8Sr2W2 is used.
Frequently Asked Questions
Common questions about O8Sr2W2, answered from cross-validated data.
What is O8Sr2W2?
O8Sr2W2 is a thermodynamically stable, wide-gap insulating oxide composed of strontium, tungsten, and oxygen.
What is O8Sr2W2 used for?
What is the band gap of O8Sr2W2?
Is O8Sr2W2 a metal, semiconductor, or insulator?
Is O8Sr2W2 thermodynamically stable?
What is the crystal structure of O8Sr2W2?
What is the density of O8Sr2W2?
How many polymorphs of O8Sr2W2 are known?
What elements does O8Sr2W2 contain?
Where does the data for O8Sr2W2 come from?
How It Compares
As a unique oxide phase, O8Sr2W2 serves as a foundational example of strontium-tungsten-oxygen chemistry. Without direct structural siblings in this specific grouping, it stands as a primary reference point for understanding the interplay between heavy metal cations and oxygen coordination in insulating ternary oxides.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
Analyze O8Sr2W2 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →