Ag2PbY
This is a ternary intermetallic compound composed of silver, lead, and yttrium. It is primarily studied by researchers investigating the structural and electronic properties of complex metallic phases.
AgPbY
Overview
Key Properties
Cross-validated computational properties for Ag2PbY, aggregated across 3 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.
0.03 eV
Range across DFT structures
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.
1.988 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.
Above hull
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
7
3 databases, 1 space group
Crystallography
Reported Structures
Lowest-energy structures reported for Ag2PbY, 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 | 0.03 | 1.9883 | -28.215 | 0.69 |
| — | — | — | — | — | 8.80 |
| — | — | — | — | — | 9.11 |
| — | — | — | — | — | — |
| — | — | — | — | — | 9.11 |
| — | — | — | — | — | 9.11 |
| — | — | — | — | — | 9.26 |
Uses
Applications
Where Ag2PbY is used.
Materials science researchSolid-state physics studies
Reference
Frequently Asked Questions
Common questions about Ag2PbY, answered from cross-validated data.
What is Ag2PbY?
This is a ternary intermetallic compound composed of silver, lead, and yttrium. It is primarily studied by researchers investigating the structural and electronic properties of complex metallic phases.
More questions
What is Ag2PbY used for?
Ag2PbY is used in materials science research and solid-state physics studies.
What is the band gap of Ag2PbY?
Ag2PbY has a DFT-computed band gap of 0.03 eV across 7 reported structures.
Is Ag2PbY a metal, semiconductor, or insulator?
With a near-zero band gap it behaves as a (semi)metal.
Is Ag2PbY thermodynamically stable?
Ag2PbY has a lowest energy above hull of 1.988 eV/atom (above hull).
What is the crystal structure of Ag2PbY?
The lowest-energy reported polymorph of Ag2PbY is orthorhombic symmetry, space group Immm (No. 71).
What is the density of Ag2PbY?
The computed density of the ground-state structure of Ag2PbY is 0.69 g/cm³.
How many polymorphs of Ag2PbY are known?
7 structures of Ag2PbY are reported across 3 databases, spanning 1 distinct space group.
What elements does Ag2PbY contain?
Ag2PbY contains Ag, Pb, and Y (3 elements).
Where does the data for Ag2PbY come from?
Ag2PbY data is cross-referenced from materials_project, omat24, alexandria.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- alexandria — Data from alexandria.
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