La3Pb
This intermetallic compound consists of lanthanum and lead. It is primarily studied by researchers in materials science to understand the structural and electronic properties of rare-earth metal alloys.
LaPb
Overview
Key Properties
Cross-validated computational properties for La3Pb, 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)
4 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
9
5 databases, 3 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for La3Pb, 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. |
|---|---|---|---|---|---|
| Pm-3m (No. 221) | cubic | 0.00 | 0.0000 | -5.006 | 7.93 |
| Pmmn (No. 59) | — | — | — | — | — |
| Pm-3m (No. 221) | — | — | — | — | — |
| P-3m1 (No. 164) | — | — | — | — | — |
| Pm-3m (No. 221) | Cubic | — | — | — | 7.93 |
| — | — | — | — | — | 7.81 |
| Pm-3m (No. 221) | Cubic | — | — | — | 8.02 |
| Pm-3m (No. 221) | Cubic | — | — | — | 7.86 |
| — | — | — | — | — | 7.54 |
Uses
Applications
Where La3Pb is used.
Fundamental condensed matter researchSolid-state physics studies
Reference
Frequently Asked Questions
Common questions about La3Pb, answered from cross-validated data.
What is La3Pb?
This intermetallic compound consists of lanthanum and lead. It is primarily studied by researchers in materials science to understand the structural and electronic properties of rare-earth metal alloys.
More questions
What is La3Pb used for?
La3Pb is used in fundamental condensed matter research and solid-state physics studies.
What is the band gap of La3Pb?
La3Pb is computed to be metallic (no band gap) in the reported DFT structures.
Is La3Pb a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is La3Pb thermodynamically stable?
Yes — La3Pb sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of La3Pb?
The lowest-energy reported polymorph of La3Pb is cubic symmetry, space group Pm-3m (No. 221).
What is the density of La3Pb?
The computed density of the ground-state structure of La3Pb is 7.93 g/cm³.
How many polymorphs of La3Pb are known?
9 structures of La3Pb are reported across 5 databases, spanning 3 distinct space groups.
What elements does La3Pb contain?
La3Pb contains La and Pb (2 elements).
Where does the data for La3Pb come from?
La3Pb data is cross-referenced from materials_project, nomad, jarvis, mpaloe, omat24.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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