Sr2VO4
Sr2VO4 is a metastable semiconducting oxide of strontium and vanadium studied for its complex structural behavior.
About Sr2VO4
Sr2VO4 is a complex oxide featuring strontium and vanadium. As a semiconducting material, it represents a unique intersection of transition metal chemistry and structural complexity, often investigated for its potential in specialized electronic applications.
Because it exists in a metastable state, this compound requires precise synthesis conditions to stabilize its crystalline framework. Its diverse structural manifestations across multiple databases highlight its significance as a subject of ongoing experimental and computational inquiry.
Key Properties
Cross-validated computational properties for Sr2VO4, 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 Sr2VO4, 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. |
|---|---|---|---|---|---|
| I4/mmm (No. 139) | tetragonal | 0.00 | 0.0257 | -7.569 | 5.26 |
| Pna21 (No. 33) | orthorhombic | 1.47 | 0.0370 | -7.558 | 4.12 |
| Pna21 (No. 33) | orthorhombic | 1.54 | 0.0965 | -7.499 | 4.47 |
| Pna21 (No. 33) | orthorhombic | 0.37 | 0.6637 | -6.931 | 3.93 |
| I4/mmm (No. 139) | Tetragonal | — | — | — | 5.06 |
| I4/mmm (No. 139) | — | — | — | — | — |
| I4/mmm (No. 139) | Tetragonal | — | — | — | 5.41 |
| I4/mmm (No. 139) | Tetragonal | — | — | — | 5.25 |
Applications
Where Sr2VO4 is used.
Frequently Asked Questions
Common questions about Sr2VO4, answered from cross-validated data.
What is Sr2VO4?
Sr2VO4 is a metastable semiconducting oxide of strontium and vanadium studied for its complex structural behavior.
What is Sr2VO4 used for?
What is the band gap of Sr2VO4?
Is Sr2VO4 a metal, semiconductor, or insulator?
Is Sr2VO4 thermodynamically stable?
What is the crystal structure of Sr2VO4?
What is the density of Sr2VO4?
How many polymorphs of Sr2VO4 are known?
What elements does Sr2VO4 contain?
Where does the data for Sr2VO4 come from?
How It Compares
As a member of the broader family of strontium-vanadium oxides, Sr2VO4 occupies a distinct niche due to its semiconducting nature and metastable character, setting it apart from more common, highly stable insulating oxides often utilized in standard ceramic applications.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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