Cu2Sc1Y1
Cu2Sc1Y1 is a semimetallic ternary intermetallic compound containing copper, scandium, and yttrium.

About Cu2Sc1Y1
Cu2Sc1Y1 is a ternary intermetallic compound composed of copper, scandium, and yttrium. It exhibits a near-zero-gap electronic character, placing it in the category of semimetallic materials that bridge the gap between conductive metals and semiconductors.
Due to its position above the thermodynamic hull, this compound is considered metastable. Its structural complexity is highlighted by a significant number of reported configurations, reflecting the diverse ways these elements can arrange themselves in the solid state.
Key Properties
Cross-validated computational properties for Cu2Sc1Y1, 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.
Frequently Asked Questions
Common questions about Cu2Sc1Y1, answered from cross-validated data.
What is Cu2Sc1Y1?
Cu2Sc1Y1 is a semimetallic ternary intermetallic compound containing copper, scandium, and yttrium.
What is the band gap of Cu2Sc1Y1?
Is Cu2Sc1Y1 a metal, semiconductor, or insulator?
Is Cu2Sc1Y1 thermodynamically stable?
How many polymorphs of Cu2Sc1Y1 are known?
What elements does Cu2Sc1Y1 contain?
Where does the data for Cu2Sc1Y1 come from?
How It Compares
As a unique ternary intermetallic, Cu2Sc1Y1 serves as a distinct case study in how the combination of transition metals and rare-earth elements influences electronic behavior and structural stability in the absence of a defined structural family.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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