As1Au1Sr2
As1Au1Sr2 is a semiconducting ternary compound of arsenic, gold, and strontium that is considered a viable candidate for experimental synthesis.
About As1Au1Sr2
As1Au1Sr2 is a ternary compound composed of arsenic, gold, and strontium. It exhibits semiconducting electronic properties, positioning it as a material of interest for specialized electronic applications where specific band characteristics are required.
As a near-hull phase, this compound is considered a promising candidate for experimental synthesis. Its structural profile suggests it is stable enough to be realized in a laboratory setting, making it a valuable subject for ongoing materials discovery efforts.
Key Properties
Cross-validated computational properties for As1Au1Sr2, 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 As1Au1Sr2, 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 | 0.50 | 0.0062 | -25.014 | 6.57 |
| P4/mmm (No. 123) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
| Amm2 (No. 38) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
Applications
Where As1Au1Sr2 is used.
Frequently Asked Questions
Common questions about As1Au1Sr2, answered from cross-validated data.
What is As1Au1Sr2?
As1Au1Sr2 is a semiconducting ternary compound of arsenic, gold, and strontium that is considered a viable candidate for experimental synthesis.
What is As1Au1Sr2 used for?
What is the band gap of As1Au1Sr2?
Is As1Au1Sr2 a metal, semiconductor, or insulator?
Is As1Au1Sr2 thermodynamically stable?
What is the crystal structure of As1Au1Sr2?
What is the density of As1Au1Sr2?
How many polymorphs of As1Au1Sr2 are known?
What elements does As1Au1Sr2 contain?
Where does the data for As1Au1Sr2 come from?
How It Compares
As a unique ternary phase, As1Au1Sr2 represents an intriguing structural arrangement of pnictide and noble metal components. Without direct siblings in this specific dataset, it serves as a distinct example of how combining alkaline earth metals with gold and arsenic can yield stable semiconducting architectures.
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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