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.

CsK
Crystal structure of CsK2
Ground-state structure · Materials Project
Overview

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.

At a glance

Key Properties

Cross-validated computational properties for CsK2, aggregated across 5 databases.

Band Gap

Metallic / not reported

Energy Above Hull

0.010 eV/atom
Best (lowest) across sources

Stability

Near hull (likely stable)
3 DFT sources

Structures

9
5 databases, 2 space groups
Validation

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 Score

1.00 / 1.00
Trust tier: medium

Hull Spread

0.000 eV
EAH spread across sources

Sources Compared

1
materials_project

Space Group Consensus

All match
Uses

Applications

Where CsK2 is used.

Fundamental materials science researchStudy of alkali metal phase behaviorInvestigation of intermetallic alloy structures
Reference

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.

More questions
What is CsK2 used for?
CsK2 is used in fundamental materials science research, study of alkali metal phase behavior, and investigation of intermetallic alloy structures.
What is the band gap of CsK2?
CsK2 is computed to be metallic (no band gap) in the reported DFT structures.
Is CsK2 a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is CsK2 thermodynamically stable?
CsK2 has a lowest energy above hull of 0.010 eV/atom (near hull (likely stable)).
How many polymorphs of CsK2 are known?
9 structures of CsK2 are reported across 5 databases, spanning 2 distinct space groups.
What elements does CsK2 contain?
CsK2 contains Cs and K (2 elements).
Where does the data for CsK2 come from?
CsK2 data is cross-referenced from latticegraph.
Comparison

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

Analyze CsK2 in the Lattice Graph platform

Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.

Explore the Platform →