Cu6Er4K2Se10
Cu6Er4K2Se10 is a semiconducting quaternary selenide compound that is predicted to be stable enough for laboratory synthesis.
About Cu6Er4K2Se10
Cu6Er4K2Se10 is a complex quaternary selenide that exhibits semiconducting electronic behavior. Its structural configuration, characterized by the integration of copper, erbium, potassium, and selenium, suggests a unique framework that is of interest for fundamental materials exploration.
Because the compound is identified as a near-hull phase, it is considered a viable target for experimental synthesis. Its existence within multiple databases highlights its significance as a subject of ongoing computational and structural study in the field of chalcogenide materials.
Key Properties
Cross-validated computational properties for Cu6Er4K2Se10, 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.
Reported Structures
Lowest-energy structures reported for Cu6Er4K2Se10, 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. |
|---|---|---|---|---|---|
| Cmcm (No. 63) | orthorhombic | 1.14 | 0.0038 | -4.965 | 6.32 |
| — | — | — | — | — | 6.28 |
| Cmcm (No. 63) | — | — | — | — | — |
Applications
Where Cu6Er4K2Se10 is used.
Frequently Asked Questions
Common questions about Cu6Er4K2Se10, answered from cross-validated data.
What is Cu6Er4K2Se10?
Cu6Er4K2Se10 is a semiconducting quaternary selenide compound that is predicted to be stable enough for laboratory synthesis.
What is Cu6Er4K2Se10 used for?
What is the band gap of Cu6Er4K2Se10?
Is Cu6Er4K2Se10 a metal, semiconductor, or insulator?
Is Cu6Er4K2Se10 thermodynamically stable?
What is the crystal structure of Cu6Er4K2Se10?
What is the density of Cu6Er4K2Se10?
How many polymorphs of Cu6Er4K2Se10 are known?
What elements does Cu6Er4K2Se10 contain?
Where does the data for Cu6Er4K2Se10 come from?
How It Compares
As a specialized quaternary chalcogenide, this compound serves as a distinct example of how rare-earth and transition metal elements can be combined to form stable, semiconducting architectures within the broader landscape of complex selenides.
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).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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