Ag1In1Mg2
Ag1In1Mg2 is a semimetallic ternary intermetallic compound that exists in a metastable state.
About Ag1In1Mg2
Ag1In1Mg2 is a ternary intermetallic compound characterized by its near-zero-gap electronic structure, placing it in the semimetallic regime. Its composition of silver, indium, and magnesium suggests a complex bonding environment typical of multi-element metallic systems.
Due to its position above the thermodynamic hull, this material is considered metastable, which presents unique challenges and opportunities for synthesis and structural analysis. It remains a subject of interest for researchers investigating the phase stability of complex metallic alloys.
Key Properties
Cross-validated computational properties for Ag1In1Mg2, 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 Ag1In1Mg2, 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. |
|---|---|---|---|---|---|
| Immm (No. 71) | orthorhombic | 0.05 | 1.2958 | -1.073 | 0.40 |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| R3m (No. 160) | — | — | — | — | — |
| Pmm2 (No. 25) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
Frequently Asked Questions
Common questions about Ag1In1Mg2, answered from cross-validated data.
What is Ag1In1Mg2?
Ag1In1Mg2 is a semimetallic ternary intermetallic compound that exists in a metastable state.
What is the band gap of Ag1In1Mg2?
Is Ag1In1Mg2 a metal, semiconductor, or insulator?
Is Ag1In1Mg2 thermodynamically stable?
What is the crystal structure of Ag1In1Mg2?
What is the density of Ag1In1Mg2?
How many polymorphs of Ag1In1Mg2 are known?
What elements does Ag1In1Mg2 contain?
Where does the data for Ag1In1Mg2 come from?
How It Compares
As a unique ternary intermetallic phase, Ag1In1Mg2 serves as a distinct example of how silver, indium, and magnesium can arrange into various structural motifs. It represents a specific point in the vast compositional space of intermetallic alloys where electronic properties are finely balanced near the semimetallic threshold.
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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