Ag2CaY
Ag2CaY is a semimetallic ternary intermetallic compound composed of silver, calcium, and yttrium that exhibits metastable thermodynamic behavior.
About Ag2CaY
Ag2CaY is a complex ternary intermetallic compound composed of silver, calcium, and yttrium. Characterized as a near-zero-gap semimetallic material, it exhibits electronic properties that bridge the gap between metallic conductors and semiconductors.
Due to its position above the thermodynamic hull, this compound is considered metastable or unstable under standard conditions. Despite this, it remains a subject of interest in materials science, with multiple reported structures across various databases highlighting its complex structural landscape.
Key Properties
Cross-validated computational properties for Ag2CaY, 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.
Applications
Where Ag2CaY is used.
Frequently Asked Questions
Common questions about Ag2CaY, answered from cross-validated data.
What is Ag2CaY?
Ag2CaY is a semimetallic ternary intermetallic compound composed of silver, calcium, and yttrium that exhibits metastable thermodynamic behavior.
What is Ag2CaY used for?
What is the band gap of Ag2CaY?
Is Ag2CaY a metal, semiconductor, or insulator?
Is Ag2CaY thermodynamically stable?
How many polymorphs of Ag2CaY are known?
What elements does Ag2CaY contain?
Where does the data for Ag2CaY come from?
How It Compares
As a unique ternary phase, Ag2CaY represents a specialized area of intermetallic research where the interplay of silver, calcium, and yttrium creates distinct electronic characteristics. Unlike more stable, well-characterized binary alloys, this compound serves as a critical case study for understanding the formation and stability of complex ternary systems.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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