Cu2La2
This intermetallic compound consists of copper and lanthanum. It is primarily studied in the context of materials science research regarding its crystal structure and electronic properties.
CuLa
Overview
Key Properties
Cross-validated computational properties for Cu2La2, 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.
Metallic / not reported
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.
0.000 eV/atom
Best (lowest) across sources
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.
On hull (stable)
3 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
34
5 databases, 15 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for Cu2La2, 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. |
|---|---|---|---|---|---|
| Pnma (No. 62) | orthorhombic | 0.00 | 0.0000 | -20.464 | 6.83 |
| Pmmn (No. 59) | — | — | — | — | — |
| P63/mmc (No. 194) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| P4/nmm (No. 129) | — | — | — | — | — |
| P4/nmm (No. 129) | — | — | — | — | — |
| Pmmn (No. 59) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
| Pmma (No. 51) | — | — | — | — | — |
| P21/m (No. 11) | — | — | — | — | — |
| P63/mmc (No. 194) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
Uses
Applications
Where Cu2La2 is used.
Materials science researchSolid-state chemistry studies
Reference
Frequently Asked Questions
Common questions about Cu2La2, answered from cross-validated data.
What is Cu2La2?
This intermetallic compound consists of copper and lanthanum. It is primarily studied in the context of materials science research regarding its crystal structure and electronic properties.
More questions
What is Cu2La2 used for?
Cu2La2 is used in materials science research and solid-state chemistry studies.
What is the band gap of Cu2La2?
Cu2La2 is computed to be metallic (no band gap) in the reported DFT structures.
Is Cu2La2 a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is Cu2La2 thermodynamically stable?
Yes — Cu2La2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of Cu2La2?
The lowest-energy reported polymorph of Cu2La2 is orthorhombic symmetry, space group Pnma (No. 62).
What is the density of Cu2La2?
The computed density of the ground-state structure of Cu2La2 is 6.83 g/cm³.
How many polymorphs of Cu2La2 are known?
34 structures of Cu2La2 are reported across 5 databases, spanning 15 distinct space groups.
What elements does Cu2La2 contain?
Cu2La2 contains Cu and La (2 elements).
Where does the data for Cu2La2 come from?
Cu2La2 data is cross-referenced from materials_project, aflow, nomad, omat24, cod.
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).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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