CeGa
CeGa is a stable metallic intermetallic compound composed of cerium and gallium.
About CeGa
CeGa is a metallic intermetallic compound formed from cerium and gallium. As a thermodynamically stable phase located on the convex hull, it represents a robust configuration of these elements that maintains structural integrity under standard conditions.
Its metallic nature suggests high electrical conductivity, making it a subject of interest for fundamental studies in rare-earth intermetallics. With numerous reported structures across multiple databases, it is a well-documented material in the field of condensed matter research.
Key Properties
Cross-validated computational properties for CeGa, aggregated across 5 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of CeGa. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for CeGa, 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. |
|---|---|---|---|---|---|
| Cmcm (No. 63) | orthorhombic | 0.00 | 0.0000 | -21.767 | 6.62 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 6.85 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 6.59 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 6.61 |
| P1 (No. 1) | Triclinic | — | — | — | 5.06 |
| No. 0 | unknown | — | — | — | 2.60 |
| P1 (No. 1) | Triclinic | — | — | — | 5.45 |
| P1 (No. 1) | Triclinic | — | — | — | 5.09 |
| No. 0 | unknown | — | — | — | 0.81 |
| Cmcm (No. 63) | — | — | — | — | — |
| Cm (No. 8) | Monoclinic | — | — | — | 4.51 |
| Cm (No. 8) | Monoclinic | — | — | — | 5.15 |
Applications
Where CeGa is used.
Frequently Asked Questions
Common questions about CeGa, answered from cross-validated data.
What is CeGa?
CeGa is a stable metallic intermetallic compound composed of cerium and gallium.
What is CeGa used for?
What is the band gap of CeGa?
Is CeGa a metal, semiconductor, or insulator?
Is CeGa thermodynamically stable?
What is the crystal structure of CeGa?
What is the density of CeGa?
How many polymorphs of CeGa are known?
What elements does CeGa contain?
Where does the data for CeGa come from?
How It Compares
As a distinct intermetallic phase, CeGa serves as an important reference point for understanding the bonding interactions between lanthanide elements and group thirteen metals, occupying a stable position within the broader landscape of binary cerium-gallium alloys.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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