LiMgPb2
LiMgPb2 is a stable semiconducting intermetallic compound composed of lithium, magnesium, and lead.
About LiMgPb2
LiMgPb2 is a thermodynamically stable intermetallic compound that sits firmly on the convex hull, indicating robust structural integrity. As a semiconducting material, it represents a unique intersection of light alkali and alkaline earth metals with heavy post-transition elements.
Its existence across multiple structural databases highlights its significance in materials science research. This compound serves as a valuable subject for investigating electronic behavior in ternary systems where the interplay between lithium, magnesium, and lead dictates its fundamental properties.
Key Properties
Cross-validated computational properties for LiMgPb2, aggregated across 4 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 LiMgPb2, 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. |
|---|---|---|---|---|---|
| Fm-3m (No. 225) | cubic | 0.00 | 0.0000 | -2.910 | 7.61 |
| Immm (No. 71) | orthorhombic | 0.40 | 1.3393 | -1.571 | 0.62 |
| Fm-3m (No. 225) | — | — | — | — | — |
| Fm-3m (No. 225) | Cubic | — | — | — | 7.25 |
| Fm-3m (No. 225) | Cubic | — | — | — | 7.56 |
| Fm-3m (No. 225) | Cubic | — | — | — | 7.61 |
| — | — | — | — | — | — |
Applications
Where LiMgPb2 is used.
Frequently Asked Questions
Common questions about LiMgPb2, answered from cross-validated data.
What is LiMgPb2?
LiMgPb2 is a stable semiconducting intermetallic compound composed of lithium, magnesium, and lead.
What is LiMgPb2 used for?
What is the band gap of LiMgPb2?
Is LiMgPb2 a metal, semiconductor, or insulator?
Is LiMgPb2 thermodynamically stable?
What is the crystal structure of LiMgPb2?
What is the density of LiMgPb2?
How many polymorphs of LiMgPb2 are known?
What elements does LiMgPb2 contain?
Where does the data for LiMgPb2 come from?
How It Compares
As a distinct ternary intermetallic, LiMgPb2 occupies a specialized niche in materials chemistry. While it does not share its immediate class with other listed compounds, its stability and semiconducting nature provide a benchmark for understanding how heavy elements like lead influence the electronic landscape of lithium-based alloys.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
- alexandria — Data from alexandria.
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