K5Sb4
K5Sb4 is a stable metallic compound consisting of potassium and antimony.

About K5Sb4
K5Sb4 is a binary intermetallic compound formed from potassium and antimony. It is characterized by its metallic electronic nature and is recognized as a thermodynamically stable phase that sits directly on the convex hull of its chemical system.
Due to its stability and well-defined structural profile, this material has been extensively documented in computational databases. Its existence is supported by a significant number of reported structures, making it a reliable subject for research into alkali metal antimonides.
Key Properties
Cross-validated computational properties for K5Sb4, 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.
Frequently Asked Questions
Common questions about K5Sb4, answered from cross-validated data.
What is K5Sb4?
K5Sb4 is a stable metallic compound consisting of potassium and antimony.
What is the band gap of K5Sb4?
Is K5Sb4 a metal, semiconductor, or insulator?
Is K5Sb4 thermodynamically stable?
How many polymorphs of K5Sb4 are known?
What elements does K5Sb4 contain?
Where does the data for K5Sb4 come from?
How It Compares
As a stable binary phase, K5Sb4 represents a distinct structural arrangement within the potassium-antimony system, serving as a key reference point for understanding the stoichiometry and bonding behavior of alkali-rich antimonides.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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