KAs
KAs is a thermodynamically stable, semiconducting binary compound formed from potassium and arsenic.
About KAs
KAs is a binary compound composed of potassium and arsenic that exhibits semiconducting electronic behavior. As a thermodynamically stable phase residing on the convex hull, it represents a robust structural configuration within its chemical system.
The material is characterized by a high degree of structural diversity, with numerous reported configurations across major databases. This data richness makes it a subject of interest for researchers investigating the fundamental electronic and physical properties of alkali metal pnictides.
Key Properties
Cross-validated computational properties for KAs, aggregated across 4 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.
Applications
Where KAs is used.
Frequently Asked Questions
Common questions about KAs, answered from cross-validated data.
What is KAs?
KAs is a thermodynamically stable, semiconducting binary compound formed from potassium and arsenic.
What is KAs used for?
What is the band gap of KAs?
Is KAs a metal, semiconductor, or insulator?
Is KAs thermodynamically stable?
How many polymorphs of KAs are known?
What elements does KAs contain?
Where does the data for KAs come from?
How It Compares
As a standalone entry in this specific chemical context, KAs serves as a primary reference point for understanding the stability and electronic behavior of potassium-arsenic systems. Its position on the convex hull establishes it as a baseline for comparing other metastable or hypothetical phases within the same elemental combination.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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