Sr2FeWO6
Sr2FeWO6 is a stable, semiconducting double perovskite oxide composed of strontium, iron, tungsten, and oxygen.
About Sr2FeWO6
Sr2FeWO6 is a complex oxide belonging to the ferrite family, characterized by its semiconducting electronic nature. As a thermodynamically stable phase located on the convex hull, it represents a robust structural configuration that has been extensively documented across multiple crystallographic databases.
This material is of significant interest in materials science due to its unique arrangement of iron and tungsten ions within the lattice. Its stability and electronic properties make it a subject of ongoing research for potential integration into functional oxide devices where precise control over semiconducting behavior is required.
Key Properties
Cross-validated computational properties for Sr2FeWO6, 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of Sr2FeWO6. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for Sr2FeWO6, 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. |
|---|---|---|---|---|---|
| P21/c (No. 14) | monoclinic | 1.77 | 0.0000 | -8.113 | 6.41 |
| — | — | 1.24 | 0.0013 | -2.717 | — |
| P-1 (No. 2) | triclinic | 2.43 | 0.0028 | -8.110 | 6.42 |
| P-1 (No. 2) | triclinic | 2.39 | 0.0035 | -8.110 | 6.42 |
| I4/m (No. 87) | tetragonal | 2.06 | 0.0035 | -8.110 | 6.41 |
| I4/m (No. 87) | tetragonal | 0.56 | 0.0217 | -2.627 | — |
| Fm-3m (No. 225) | cubic | 0.57 | 0.0218 | -2.627 | — |
| — | — | 0.70 | 0.0259 | -2.692 | — |
| P1 (No. 1) | triclinic | 1.05 | 0.0414 | -8.072 | 6.47 |
| C2/m (No. 12) | monoclinic | 0.58 | 0.0427 | -8.070 | 6.49 |
| — | — | 0.00 | 0.0601 | -2.658 | — |
| — | — | 0.00 | 0.0602 | -2.658 | — |
Synthesis Routes
Literature-extracted synthesis procedures targeting Sr2FeWO6.
Applications
Where Sr2FeWO6 is used.
Frequently Asked Questions
Common questions about Sr2FeWO6, answered from cross-validated data.
What is Sr2FeWO6?
Sr2FeWO6 is a stable, semiconducting double perovskite oxide composed of strontium, iron, tungsten, and oxygen.
What is Sr2FeWO6 used for?
What is the band gap of Sr2FeWO6?
Is Sr2FeWO6 a metal, semiconductor, or insulator?
Is Sr2FeWO6 thermodynamically stable?
What is the crystal structure of Sr2FeWO6?
What is the density of Sr2FeWO6?
How many polymorphs of Sr2FeWO6 are known?
How is Sr2FeWO6 synthesized?
What elements does Sr2FeWO6 contain?
Where does the data for Sr2FeWO6 come from?
How It Compares
Within the spinel and hexagonal ferrites class.
Within the diverse group of ferrites and related oxides, Sr2FeWO6 occupies a distinct niche compared to siblings like Sr2FeMoO6. While many ferrites such as MgFe2O4 or ZnFe2O4 are widely recognized for their magnetic properties, Sr2FeWO6 leverages the specific electronic interplay between iron and tungsten to maintain its stable semiconducting profile, differentiating it from the more common spinel-structured ferrites.
Related Compounds
Other Spinel and Hexagonal Ferrites in the database.
Data sources & attribution
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- cod — Data from the Crystallography Open Database (crystallography.net/cod/). Cite: Grazulis et al., J. Appl. Cryst. 42, 726 (2009). (CC0-1.0)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
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