Al2La2
Al2La2 is a stable metallic intermetallic compound formed from aluminum and lanthanum that is frequently studied in materials science databases.
About Al2La2
Al2La2 is a metallic intermetallic compound composed of aluminum and lanthanum. As a material that sits on the convex hull, it exhibits notable thermodynamic stability, making it a significant subject for structural analysis and phase diagram studies.
With a high degree of data richness across multiple databases, this compound serves as a reference point for understanding the bonding and structural behavior of rare-earth aluminum alloys. Its metallic nature suggests potential utility in specialized metallurgical applications where stable, conductive intermetallic phases are required.
Key Properties
Cross-validated computational properties for Al2La2, 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.
Reported Structures
Lowest-energy structures reported for Al2La2, 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 | -18.708 | 5.20 |
| Fd-3m (No. 227) | — | — | — | — | — |
| P63/mmc (No. 194) | — | — | — | — | — |
| P-3m1 (No. 164) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| Imma (No. 74) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
| Imma (No. 74) | — | — | — | — | — |
| I41/amd (No. 141) | — | — | — | — | — |
Applications
Where Al2La2 is used.
Frequently Asked Questions
Common questions about Al2La2, answered from cross-validated data.
What is Al2La2?
Al2La2 is a stable metallic intermetallic compound formed from aluminum and lanthanum that is frequently studied in materials science databases.
What is Al2La2 used for?
What is the band gap of Al2La2?
Is Al2La2 a metal, semiconductor, or insulator?
Is Al2La2 thermodynamically stable?
What is the crystal structure of Al2La2?
What is the density of Al2La2?
How many polymorphs of Al2La2 are known?
What elements does Al2La2 contain?
Where does the data for Al2La2 come from?
How It Compares
As a thermodynamically stable phase within the aluminum-lanthanum system, Al2La2 represents a foundational structure for exploring binary intermetallic interactions. It serves as a key benchmark for researchers investigating the complex phase space of rare-earth metal alloys.
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).
Analyze Al2La2 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →