VW
VW is a thermodynamically stable metallic compound formed from vanadium and tungsten.
About VW
VW is a metallic binary compound composed of vanadium and tungsten. As a thermodynamically stable phase located on the convex hull, it represents a robust structural configuration that is highly favored in its chemical system.
Due to its metallic nature, the material exhibits characteristic electronic properties suitable for applications where conductivity and structural integrity are paramount. Its status is underscored by extensive documentation across multiple structural databases, reflecting its significance in materials science research.
Key Properties
Cross-validated computational properties for VW, aggregated across 5 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 VW. 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 VW, 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. |
|---|---|---|---|---|---|
| Cmmm (No. 65) | orthorhombic | 0.00 | 0.0000 | -32.790 | 13.31 |
| P-1 (No. 2) | Triclinic | — | — | — | 12.60 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 16.21 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 10.07 |
| P-1 (No. 2) | Triclinic | — | — | — | 12.48 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 12.45 |
| P-1 (No. 2) | Triclinic | — | — | — | 9.90 |
| P-1 (No. 2) | Triclinic | — | — | — | 14.71 |
| P213 (No. 198) | Cubic | — | — | — | 12.95 |
| P-1 (No. 2) | Triclinic | — | — | — | 13.96 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 11.07 |
| P21/m (No. 11) | Monoclinic | — | — | — | 14.75 |
Applications
Where VW is used.
Frequently Asked Questions
Common questions about VW, answered from cross-validated data.
What is VW?
VW is a thermodynamically stable metallic compound formed from vanadium and tungsten.
What is VW used for?
What is the band gap of VW?
Is VW a metal, semiconductor, or insulator?
Is VW thermodynamically stable?
What is the crystal structure of VW?
What is the density of VW?
How many polymorphs of VW are known?
What elements does VW contain?
Where does the data for VW come from?
How It Compares
As a standalone binary phase in this system, VW serves as a primary reference point for understanding the interplay between vanadium and tungsten. It occupies a distinct position of stability, providing a baseline for exploring the phase space of transition metal alloys.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
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