CsK2
CsK2 is a metallic intermetallic compound composed of cesium and potassium that is considered likely to be synthesizable due to its near-hull thermodynamic stability.

About CsK2
CsK2 is a metallic intermetallic compound formed from the combination of cesium and potassium. As a near-hull material, it occupies a favorable energetic position that suggests it is likely synthesizable under appropriate experimental conditions.
Its metallic electronic character highlights its role as a conductor, typical of alkali metal alloys. With multiple reported structures across various databases, this compound serves as an interesting subject for researchers investigating the phase behavior and structural diversity of binary alkali metal systems.
Key Properties
Cross-validated computational properties for CsK2, aggregated across 5 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of CsK2. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Applications
Where CsK2 is used.
Frequently Asked Questions
Common questions about CsK2, answered from cross-validated data.
What is CsK2?
CsK2 is a metallic intermetallic compound composed of cesium and potassium that is considered likely to be synthesizable due to its near-hull thermodynamic stability.
What is CsK2 used for?
What is the band gap of CsK2?
Is CsK2 a metal, semiconductor, or insulator?
Is CsK2 thermodynamically stable?
How many polymorphs of CsK2 are known?
What elements does CsK2 contain?
Where does the data for CsK2 come from?
How It Compares
As a binary alkali metal alloy, CsK2 represents a specific point in the phase space of cesium-potassium systems. Without other members of this specific class provided for direct comparison, it stands as a noteworthy example of how alkali metals can arrange into stable or near-stable configurations that warrant further experimental validation.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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