MgWO4
Magnesium tungstate · Magnesium wolframate
Magnesium tungstate is an inorganic crystalline compound that exhibits luminescent properties when exposed to certain types of radiation. It is primarily utilized as a phosphor material in various imaging and detection technologies.
MgOW
Overview
Key Properties
Cross-validated computational properties for Magnesium tungstate, 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.
3.24–3.68 eV
Range across DFT structures
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.
0.000 eV/atom
Best (lowest) across sources
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.
On hull (stable)
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
15
3 databases, 1 space group
Crystallography
Reported Structures
Lowest-energy structures reported for MgWO4, 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. |
|---|---|---|---|---|---|
| P2/c (No. 13) | monoclinic | 3.68 | 0.0000 | -8.292 | 6.87 |
| P2/c (No. 13) | monoclinic | 3.31 | 0.0269 | -8.266 | 5.90 |
| P2/c (No. 13) | monoclinic | 3.24 | 0.1279 | -8.164 | 6.25 |
| P2/c (No. 13) | — | — | — | — | — |
| P2/c (No. 13) | — | — | — | — | — |
| P2/c (No. 13) | Monoclinic | — | — | — | 6.25 |
| P2/c (No. 13) | Monoclinic | — | — | — | 7.01 |
| P2/c (No. 13) | Monoclinic | — | — | — | 6.60 |
| P2/c (No. 13) | Monoclinic | — | — | — | 6.57 |
| P2/c (No. 13) | Monoclinic | — | — | — | 6.45 |
| P2/c (No. 13) | Monoclinic | — | — | — | 5.90 |
| P2/c (No. 13) | Monoclinic | — | — | — | 6.08 |
Uses
Applications
Where Magnesium tungstate is used.
X-ray intensifying screensScintillation detectorsFluorescent lightingOptical imaging devices
Reference
Frequently Asked Questions
Common questions about Magnesium tungstate, answered from cross-validated data.
What is MgWO4?
Magnesium tungstate is an inorganic crystalline compound that exhibits luminescent properties when exposed to certain types of radiation. It is primarily utilized as a phosphor material in various imaging and detection technologies.
More questions
What is MgWO4 used for?
Magnesium tungstate (MgWO4) is used in x-ray intensifying screens, scintillation detectors, fluorescent lighting, and optical imaging devices.
What is the band gap of MgWO4?
Magnesium tungstate (MgWO4) has a DFT-computed band gap of 3.24–3.68 eV across 15 reported structures.
Is MgWO4 a metal, semiconductor, or insulator?
With a wide band gap up to 3.68 eV it is an insulator / wide-band-gap material.
Is MgWO4 thermodynamically stable?
Yes — Magnesium tungstate (MgWO4) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of MgWO4?
The lowest-energy reported polymorph of Magnesium tungstate (MgWO4) is monoclinic symmetry, space group P2/c (No. 13).
What is the density of MgWO4?
The computed density of the ground-state structure of Magnesium tungstate (MgWO4) is 6.87 g/cm³.
How many polymorphs of MgWO4 are known?
15 structures of MgWO4 are reported across 3 databases, spanning 1 distinct space group.
What elements does MgWO4 contain?
Magnesium tungstate (MgWO4) contains Mg, O, and W (3 elements).
Where does the data for MgWO4 come from?
MgWO4 data is cross-referenced from materials_project, jarvis, mpaloe.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
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