Ag1Au1Y2
Ag1Au1Y2 is a semimetallic intermetallic compound composed of silver, gold, and yttrium that shows promise for experimental synthesis.
About Ag1Au1Y2
Ag1Au1Y2 is a complex intermetallic compound composed of silver, gold, and yttrium. As a near-zero-gap material, it exhibits semimetallic electronic character, positioning it as an intriguing candidate for specialized electronic and quantum transport studies.
The compound is characterized by its location near the thermodynamic hull, indicating that it is likely synthesizable under appropriate experimental conditions. With numerous structural variants reported in computational databases, it represents a significant subject for ongoing structural and phase stability investigations.
Key Properties
Cross-validated computational properties for Ag1Au1Y2, 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 Ag1Au1Y2, 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 | 0.0110 | -28.780 | 8.60 |
| Immm (No. 71) | orthorhombic | 0.03 | 2.3827 | -26.409 | 0.66 |
| P4mm (No. 99) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| R3m (No. 160) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
| Pm (No. 6) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
Applications
Where Ag1Au1Y2 is used.
Frequently Asked Questions
Common questions about Ag1Au1Y2, answered from cross-validated data.
What is Ag1Au1Y2?
Ag1Au1Y2 is a semimetallic intermetallic compound composed of silver, gold, and yttrium that shows promise for experimental synthesis.
What is Ag1Au1Y2 used for?
What is the band gap of Ag1Au1Y2?
Is Ag1Au1Y2 a metal, semiconductor, or insulator?
Is Ag1Au1Y2 thermodynamically stable?
What is the crystal structure of Ag1Au1Y2?
What is the density of Ag1Au1Y2?
How many polymorphs of Ag1Au1Y2 are known?
What elements does Ag1Au1Y2 contain?
Where does the data for Ag1Au1Y2 come from?
How It Compares
As a unique ternary intermetallic, Ag1Au1Y2 serves as a foundational example of how combining noble metals with rare-earth elements can tune electronic properties near the semimetallic limit, providing a benchmark for future structural explorations in this chemical space.
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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