La4Pb3
La4Pb3 is a stable metallic compound formed from lanthanum and lead that is frequently studied for its structural characteristics.
About La4Pb3
La4Pb3 is a metallic intermetallic compound composed of lanthanum and lead. As a thermodynamically stable phase located on the convex hull, it represents a robust structural arrangement that has been extensively documented across multiple crystallographic databases.
Its metallic nature suggests significant potential for applications involving electrical conductivity or specialized alloying. The compound's structural stability makes it a reliable subject for researchers investigating the complex phase behaviors of rare-earth lead systems.
Key Properties
Cross-validated computational properties for La4Pb3, 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 La4Pb3, 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-43d (No. 220) | cubic | 0.00 | 0.0000 | -5.038 | 8.00 |
| I-43d (No. 220) | — | — | — | — | — |
| I-43d (No. 220) | Cubic | — | — | — | 8.00 |
| I-43d (No. 220) | Cubic | — | — | — | 8.07 |
| I-43d (No. 220) | Cubic | — | — | — | 8.09 |
| I-43d (No. 220) | — | — | — | — | — |
| P6/mmm (No. 191) | — | — | — | — | — |
Applications
Where La4Pb3 is used.
Frequently Asked Questions
Common questions about La4Pb3, answered from cross-validated data.
What is La4Pb3?
La4Pb3 is a stable metallic compound formed from lanthanum and lead that is frequently studied for its structural characteristics.
What is La4Pb3 used for?
What is the band gap of La4Pb3?
Is La4Pb3 a metal, semiconductor, or insulator?
Is La4Pb3 thermodynamically stable?
What is the crystal structure of La4Pb3?
What is the density of La4Pb3?
How many polymorphs of La4Pb3 are known?
What elements does La4Pb3 contain?
Where does the data for La4Pb3 come from?
How It Compares
As a distinct intermetallic phase, La4Pb3 serves as a foundational example of lanthanum-lead bonding. While it stands as a unique entry in this chemical space, its stability provides a benchmark for understanding how rare-earth elements integrate with heavy p-block metals to form ordered crystalline structures.
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).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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