Ag1Au2Mg1
Ag1Au2Mg1 is a semiconducting ternary intermetallic compound that is theoretically stable enough to be synthesized in the laboratory.
About Ag1Au2Mg1
Ag1Au2Mg1 is a distinct ternary intermetallic compound composed of silver, gold, and magnesium. Its electronic structure characterizes it as a semiconductor, marking it as an intriguing subject for research into complex metallic phases.
Because it sits near the thermodynamic hull, the compound is considered a viable candidate for laboratory synthesis. With multiple structural configurations identified in materials databases, it serves as a valuable entry for understanding the interplay of these specific transition and alkaline earth metals.
Key Properties
Cross-validated computational properties for Ag1Au2Mg1, aggregated across 2 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 Ag1Au2Mg1, 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. |
|---|---|---|---|---|---|
| Fm-3m (No. 225) | cubic | 0.00 | 0.0121 | -3.091 | 12.50 |
| Immm (No. 71) | orthorhombic | 0.25 | 1.2352 | -1.868 | 0.94 |
| P4mm (No. 99) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
Applications
Where Ag1Au2Mg1 is used.
Frequently Asked Questions
Common questions about Ag1Au2Mg1, answered from cross-validated data.
What is Ag1Au2Mg1?
Ag1Au2Mg1 is a semiconducting ternary intermetallic compound that is theoretically stable enough to be synthesized in the laboratory.
What is Ag1Au2Mg1 used for?
What is the band gap of Ag1Au2Mg1?
Is Ag1Au2Mg1 a metal, semiconductor, or insulator?
Is Ag1Au2Mg1 thermodynamically stable?
What is the crystal structure of Ag1Au2Mg1?
What is the density of Ag1Au2Mg1?
How many polymorphs of Ag1Au2Mg1 are known?
What elements does Ag1Au2Mg1 contain?
Where does the data for Ag1Au2Mg1 come from?
How It Compares
As a unique ternary phase, Ag1Au2Mg1 occupies a distinct niche in materials science, serving as a representative example of how combining noble metals with magnesium can yield semiconducting behavior in an otherwise metallic context.
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).
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