Cd1Cu2Y1
Cd1Cu2Y1 is a semiconducting ternary compound of cadmium, copper, and yttrium that is generally considered thermodynamically unstable.
About Cd1Cu2Y1
Cd1Cu2Y1 is a ternary intermetallic compound composed of cadmium, copper, and yttrium. It exhibits semiconducting electronic behavior, positioning it as an interesting subject for fundamental research into complex alloy systems.
Due to its position above the thermodynamic hull, this material is considered likely unstable under standard conditions. Despite this, the compound has been documented across multiple structural configurations, highlighting the diverse ways these elements can arrange themselves at the atomic scale.
Key Properties
Cross-validated computational properties for Cd1Cu2Y1, 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 Cd1Cu2Y1, 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 | 0.38 | 1.9701 | -2.179 | 0.54 |
| Pmm2 (No. 25) | — | — | — | — | — |
| Cm (No. 8) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| R3m (No. 160) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| Cmm2 (No. 35) | — | — | — | — | — |
Patent Landscape
1 patent reference Cd1Cu2Y1 or close compositional variants.
| Patent | Title | Assignee | Granted |
|---|---|---|---|
| 8248032 | Charging system for prioritizing load consumption in a notebook computer | — | — |
Frequently Asked Questions
Common questions about Cd1Cu2Y1, answered from cross-validated data.
What is Cd1Cu2Y1?
Cd1Cu2Y1 is a semiconducting ternary compound of cadmium, copper, and yttrium that is generally considered thermodynamically unstable.
What is the band gap of Cd1Cu2Y1?
Is Cd1Cu2Y1 a metal, semiconductor, or insulator?
Is Cd1Cu2Y1 thermodynamically stable?
What is the crystal structure of Cd1Cu2Y1?
What is the density of Cd1Cu2Y1?
How many polymorphs of Cd1Cu2Y1 are known?
What elements does Cd1Cu2Y1 contain?
Where does the data for Cd1Cu2Y1 come from?
How It Compares
As a unique ternary phase, Cd1Cu2Y1 serves as a distinct case study for the interplay between cadmium, copper, and yttrium. While it lacks direct siblings in this specific dataset, its existence within a broad range of reported structures underscores the complexity of phase formation in systems involving these transition and post-transition metals.
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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