Au3Rb3Sb2
Au3Rb3Sb2 is a thermodynamically stable semiconducting intermetallic compound containing gold, rubidium, and antimony.
About Au3Rb3Sb2
Au3Rb3Sb2 is a complex intermetallic compound composed of gold, rubidium, and antimony. As a thermodynamically stable phase residing on the convex hull, it represents a robust structural arrangement of these specific elements. Its electronic character is defined as semiconducting, marking it as an interesting candidate for electronic and solid-state research.
Because of its distinct stoichiometry and stability, this material serves as a focal point for understanding ternary phase behavior in gold-based systems. It is primarily utilized in fundamental materials science research to explore the interplay between heavy metal and alkali metal bonding environments.
Key Properties
Cross-validated computational properties for Au3Rb3Sb2, aggregated across 3 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 Au3Rb3Sb2, 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. |
|---|---|---|---|---|---|
| R-3m (No. 166) | trigonal | 1.22 | 0.0000 | -3.090 | 6.71 |
| R-3m (No. 166) | — | — | — | — | — |
| — | — | — | — | — | 6.49 |
| — | — | — | — | — | 6.49 |
Applications
Where Au3Rb3Sb2 is used.
Frequently Asked Questions
Common questions about Au3Rb3Sb2, answered from cross-validated data.
What is Au3Rb3Sb2?
Au3Rb3Sb2 is a thermodynamically stable semiconducting intermetallic compound containing gold, rubidium, and antimony.
What is Au3Rb3Sb2 used for?
What is the band gap of Au3Rb3Sb2?
Is Au3Rb3Sb2 a metal, semiconductor, or insulator?
Is Au3Rb3Sb2 thermodynamically stable?
What is the crystal structure of Au3Rb3Sb2?
What is the density of Au3Rb3Sb2?
How many polymorphs of Au3Rb3Sb2 are known?
What elements does Au3Rb3Sb2 contain?
Where does the data for Au3Rb3Sb2 come from?
How It Compares
As a unique ternary intermetallic, Au3Rb3Sb2 occupies a specific niche in materials science where gold and alkali metals interact with pnictogens. Unlike simpler binary alloys, this compound demonstrates the complexity achievable in multi-element systems, serving as a benchmark for stability and electronic behavior in its class.
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).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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