MgGeN2
MgGeN2 is a thermodynamically stable semiconducting nitride compound.
About MgGeN2
MgGeN2 is a semiconducting ternary nitride that occupies a stable position on the convex hull, indicating robust thermodynamic favorability. Its composition of magnesium, germanium, and nitrogen allows for a unique electronic structure that distinguishes it from more common binary semiconductors. The material is characterized by its structural versatility, with multiple reported configurations across crystallographic databases. This diversity in structural arrangements underscores its potential as a functional material in specialized semiconductor research.
Key Properties
Cross-validated computational properties for MgGeN2, 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 MgGeN2, 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. |
|---|---|---|---|---|---|
| Pna21 (No. 33) | orthorhombic | 2.64 | 0.0000 | -9.836 | 4.41 |
| Pna21 (No. 33) | — | — | — | — | — |
| P21 (No. 4) | Monoclinic | — | — | — | 5.11 |
| P-421m (No. 113) | Tetragonal | — | — | — | 5.11 |
| P21 (No. 4) | Monoclinic | — | — | — | 5.13 |
Applications
Where MgGeN2 is used.
Frequently Asked Questions
Common questions about MgGeN2, answered from cross-validated data.
What is MgGeN2?
MgGeN2 is a thermodynamically stable semiconducting nitride compound.
What is MgGeN2 used for?
What is the band gap of MgGeN2?
Is MgGeN2 a metal, semiconductor, or insulator?
Is MgGeN2 thermodynamically stable?
What is the crystal structure of MgGeN2?
What is the density of MgGeN2?
How many polymorphs of MgGeN2 are known?
What elements does MgGeN2 contain?
Where does the data for MgGeN2 come from?
How It Compares
As a ternary nitride, MgGeN2 represents a distinct class of materials that bridge the gap between simple binary nitrides and more complex multinary systems, offering a stable platform for exploring tunable electronic properties.
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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