Ag2PbY
Ag2PbY is a semimetallic ternary compound of silver, lead, and yttrium that exists in a metastable state.
About Ag2PbY
Ag2PbY is a complex ternary intermetallic compound composed of silver, lead, and yttrium. Its electronic structure is characterized as a near-zero-gap semimetal, placing it in a unique regime where conduction and valence bands meet, potentially influencing its charge transport properties.
Regarding its thermodynamic state, the compound is situated above the hull, suggesting it may be metastable or unstable under standard conditions. Despite this, the material has been documented across multiple structural databases, indicating significant interest in its potential phases and atomic arrangements.
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.
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.
Applications
Where Ag2PbY is used.
Frequently Asked Questions
Common questions about Ag2PbY, answered from cross-validated data.
What is Ag2PbY?
Ag2PbY is a semimetallic ternary compound of silver, lead, and yttrium that exists in a metastable state.
What is Ag2PbY used for?
What is the band gap of Ag2PbY?
Is Ag2PbY a metal, semiconductor, or insulator?
Is Ag2PbY thermodynamically stable?
How many polymorphs of Ag2PbY are known?
What elements does Ag2PbY contain?
Where does the data for Ag2PbY come from?
How It Compares
As a ternary intermetallic, Ag2PbY represents a specialized area of materials research where the combination of noble, post-transition, and rare-earth elements creates complex bonding environments. Without established siblings in this specific class, it serves as a distinct case study for how heavy-element alloying influences electronic band structures in potentially unstable configurations.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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