Au2Cd1Sr1
Au2Cd1Sr1 is a semiconducting ternary intermetallic compound containing gold, cadmium, and strontium.
About Au2Cd1Sr1
Au2Cd1Sr1 is a ternary intermetallic compound composed of gold, cadmium, and strontium. As a semiconducting material, it represents a specialized niche in solid-state chemistry where the interplay of heavy noble metals and alkaline earth elements dictates its electronic behavior.
While this compound has been identified across various structural configurations, its thermodynamic profile suggests it exists in a metastable state relative to its constituent elements. Its study contributes to the broader understanding of phase stability and bonding patterns in complex ternary alloy systems.
Key Properties
Cross-validated computational properties for Au2Cd1Sr1, 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 Au2Cd1Sr1, 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 | 0.95 | 1.0762 | -1.776 | 0.74 |
| F-43m (No. 216) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| R3m (No. 160) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
Frequently Asked Questions
Common questions about Au2Cd1Sr1, answered from cross-validated data.
What is Au2Cd1Sr1?
Au2Cd1Sr1 is a semiconducting ternary intermetallic compound containing gold, cadmium, and strontium.
What is the band gap of Au2Cd1Sr1?
Is Au2Cd1Sr1 a metal, semiconductor, or insulator?
Is Au2Cd1Sr1 thermodynamically stable?
What is the crystal structure of Au2Cd1Sr1?
What is the density of Au2Cd1Sr1?
How many polymorphs of Au2Cd1Sr1 are known?
What elements does Au2Cd1Sr1 contain?
Where does the data for Au2Cd1Sr1 come from?
How It Compares
As a unique ternary phase, Au2Cd1Sr1 occupies a distinct position in the landscape of intermetallic compounds, serving as a case study for how specific stoichiometric ratios of gold and cadmium with strontium influence electronic properties in the absence of more common binary counterparts.
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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