Cd4Mg2
Cd4Mg2 is a semiconducting intermetallic compound that is considered a viable candidate for synthesis due to its near-hull thermodynamic stability.
About Cd4Mg2
Cd4Mg2 is a semiconducting intermetallic compound composed of cadmium and magnesium. Its electronic character suggests unique transport properties that distinguish it from simple metallic alloys, positioning it as a subject of interest for specialized electronic applications.
As a near-hull material, Cd4Mg2 is considered thermodynamically accessible and likely synthesizable under controlled conditions. The significant number of reported structural configurations across multiple databases underscores its complexity and the ongoing interest in its phase stability.
Key Properties
Cross-validated computational properties for Cd4Mg2, aggregated across 4 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 Cd4Mg2, 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. |
|---|---|---|---|---|---|
| Cmcm (No. 63) | orthorhombic | 0.00 | 0.0075 | -1.239 | 6.55 |
| Cmcm (No. 63) | orthorhombic | 0.00 | 0.0093 | -1.237 | 6.52 |
| C2/c (No. 15) | monoclinic | 0.00 | 0.0327 | -1.214 | 6.52 |
| R32 (No. 155) | trigonal | 0.00 | 0.0341 | -1.213 | 6.49 |
| Cmcm (No. 63) | orthorhombic | 0.00 | 0.0346 | -1.212 | 6.44 |
| Cmcm (No. 63) | orthorhombic | 0.00 | 0.0390 | -1.208 | 6.59 |
| C2/m (No. 12) | monoclinic | 0.00 | 0.0470 | -1.200 | 6.52 |
| Amm2 (No. 38) | orthorhombic | 0.97 | 0.0483 | -1.198 | 6.47 |
| P-62m (No. 189) | hexagonal | 0.00 | 0.0526 | -1.194 | 6.51 |
| Cm (No. 8) | monoclinic | 0.00 | 0.0558 | -1.191 | 6.44 |
| C2/m (No. 12) | monoclinic | 0.00 | 0.0588 | -1.188 | 6.48 |
| C2/m (No. 12) | monoclinic | 0.00 | 0.0593 | -1.187 | 6.48 |
Applications
Where Cd4Mg2 is used.
Frequently Asked Questions
Common questions about Cd4Mg2, answered from cross-validated data.
What is Cd4Mg2?
Cd4Mg2 is a semiconducting intermetallic compound that is considered a viable candidate for synthesis due to its near-hull thermodynamic stability.
What is Cd4Mg2 used for?
What is the band gap of Cd4Mg2?
Is Cd4Mg2 a metal, semiconductor, or insulator?
Is Cd4Mg2 thermodynamically stable?
What is the crystal structure of Cd4Mg2?
What is the density of Cd4Mg2?
How many polymorphs of Cd4Mg2 are known?
What elements does Cd4Mg2 contain?
Where does the data for Cd4Mg2 come from?
How It Compares
As a distinct intermetallic phase, Cd4Mg2 represents a specific structural arrangement within the cadmium-magnesium binary system. Unlike more common, highly stable metallic phases, its semiconducting nature highlights the diverse electronic landscape accessible through precise stoichiometry in this alloy family.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
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