Ag2Au1In1
Ag2Au1In1 is a semiconducting ternary intermetallic compound composed of silver, gold, and indium that exhibits a high degree of structural complexity.
About Ag2Au1In1
Ag2Au1In1 is a complex ternary intermetallic compound composed of silver, gold, and indium. As a semiconducting material, it represents a unique intersection of noble metals and post-transition elements, offering distinct electronic properties that differentiate it from simple metallic alloys.
While the compound is currently characterized as being above the thermodynamic hull, its structural diversity is evidenced by numerous reported configurations in computational databases. This suggests a complex energy landscape that remains a subject of interest for researchers investigating metastable phases and unconventional bonding in ternary systems.
Key Properties
Cross-validated computational properties for Ag2Au1In1, 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 Ag2Au1In1, 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 | 0.79 | 1.1446 | -27.974 | 0.87 |
| Pmm2 (No. 25) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| Immm (No. 71) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
Applications
Where Ag2Au1In1 is used.
Frequently Asked Questions
Common questions about Ag2Au1In1, answered from cross-validated data.
What is Ag2Au1In1?
Ag2Au1In1 is a semiconducting ternary intermetallic compound composed of silver, gold, and indium that exhibits a high degree of structural complexity.
What is Ag2Au1In1 used for?
What is the band gap of Ag2Au1In1?
Is Ag2Au1In1 a metal, semiconductor, or insulator?
Is Ag2Au1In1 thermodynamically stable?
What is the crystal structure of Ag2Au1In1?
What is the density of Ag2Au1In1?
How many polymorphs of Ag2Au1In1 are known?
What elements does Ag2Au1In1 contain?
Where does the data for Ag2Au1In1 come from?
How It Compares
As a unique ternary phase, Ag2Au1In1 occupies a specialized niche within intermetallic chemistry. Unlike simpler binary alloys, this compound demonstrates the intricate structural possibilities that arise when combining silver, gold, and indium, serving as a case study for exploring how specific atomic arrangements influence electronic behavior in complex, potentially metastable systems.
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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