Ag1Li1Pb2
Ag1Li1Pb2 is a semiconducting ternary intermetallic compound that is considered metastable.
About Ag1Li1Pb2
Ag1Li1Pb2 is a complex ternary intermetallic compound composed of silver, lithium, and lead. As a semiconducting material, it occupies a specialized niche in solid-state chemistry, drawing interest from researchers investigating the electronic properties of multi-element metal alloys.
Despite its existence in multiple structural configurations, the compound is characterized as being above the thermodynamic hull. This suggests that it is a metastable phase, requiring specific synthesis conditions to stabilize, which makes it a subject of significant interest for fundamental studies in phase stability and structural evolution.
Key Properties
Cross-validated computational properties for Ag1Li1Pb2, aggregated across 2 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 Ag1Li1Pb2, 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. |
|---|---|---|---|---|---|
| Immm (No. 71) | orthorhombic | 0.14 | 1.3740 | -1.808 | 0.75 |
| P4mm (No. 99) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| Pmm2 (No. 25) | — | — | — | — | — |
| R3m (No. 160) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
Applications
Where Ag1Li1Pb2 is used.
Frequently Asked Questions
Common questions about Ag1Li1Pb2, answered from cross-validated data.
What is Ag1Li1Pb2?
Ag1Li1Pb2 is a semiconducting ternary intermetallic compound that is considered metastable.
What is Ag1Li1Pb2 used for?
What is the band gap of Ag1Li1Pb2?
Is Ag1Li1Pb2 a metal, semiconductor, or insulator?
Is Ag1Li1Pb2 thermodynamically stable?
What is the crystal structure of Ag1Li1Pb2?
What is the density of Ag1Li1Pb2?
How many polymorphs of Ag1Li1Pb2 are known?
What elements does Ag1Li1Pb2 contain?
Where does the data for Ag1Li1Pb2 come from?
How It Compares
As a unique ternary intermetallic, Ag1Li1Pb2 serves as a distinct case study for how the combination of noble, alkali, and post-transition metals influences electronic behavior. Without direct siblings in this specific class, it stands as a singular example of how complex stoichiometry can lead to semiconducting character in otherwise metallic-dominated elemental systems.
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).
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