RbGa3
RbGa3 is a stable semiconducting intermetallic compound formed from rubidium and gallium.
About RbGa3
RbGa3 is a distinct intermetallic compound composed of rubidium and gallium. It is characterized by its semiconducting electronic nature and is recognized as a thermodynamically stable phase located on the convex hull, indicating a robust structural configuration.
Due to its stability and electronic properties, this material serves as a subject of interest in solid-state chemistry. Its existence across multiple reported structures highlights its significance in understanding phase behavior within the rubidium-gallium binary system.
Key Properties
Cross-validated computational properties for RbGa3, aggregated across 4 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 RbGa3, 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. |
|---|---|---|---|---|---|
| I-4m2 (No. 119) | tetragonal | 0.15 | 0.0000 | -2.685 | 4.93 |
| I-4m2 (No. 119) | Tetragonal | — | — | — | 4.68 |
| I-4m2 (No. 119) | Tetragonal | — | — | — | 4.90 |
| I-4m2 (No. 119) | Tetragonal | — | — | — | 4.93 |
| P-421m (No. 113) | Tetragonal | — | — | — | 4.26 |
| P-1 (No. 2) | Triclinic | — | — | — | 4.74 |
| P-421m (No. 113) | Tetragonal | — | — | — | 4.96 |
| P-421m (No. 113) | Tetragonal | — | — | — | 4.45 |
| P-1 (No. 2) | Triclinic | — | — | — | 4.31 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.12 |
| Cm (No. 8) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
Applications
Where RbGa3 is used.
Frequently Asked Questions
Common questions about RbGa3, answered from cross-validated data.
What is RbGa3?
RbGa3 is a stable semiconducting intermetallic compound formed from rubidium and gallium.
What is RbGa3 used for?
What is the band gap of RbGa3?
Is RbGa3 a metal, semiconductor, or insulator?
Is RbGa3 thermodynamically stable?
What is the crystal structure of RbGa3?
What is the density of RbGa3?
How many polymorphs of RbGa3 are known?
What elements does RbGa3 contain?
Where does the data for RbGa3 come from?
How It Compares
As a thermodynamically stable semiconducting phase, RbGa3 represents a well-defined structural endpoint in its binary system. It serves as a fundamental reference point for researchers investigating the electronic and structural evolution of alkali metal-gallium compounds.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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