Eu2I2O
Eu2I2O is a thermodynamically stable semimetallic compound consisting of europium, iodine, and oxygen.
About Eu2I2O
Eu2I2O is a distinct inorganic compound composed of europium, iodine, and oxygen. It is characterized by its thermodynamically stable nature, as it sits on the convex hull, indicating a robust structural configuration under standard conditions.
This material exhibits near-zero-gap electronic character, placing it in the semimetallic regime. Its unique elemental composition and electronic properties make it a subject of interest for researchers exploring complex ternary systems that bridge the gap between metallic and semiconducting behaviors.
Key Properties
Cross-validated computational properties for Eu2I2O, 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of Eu2I2O. 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.
Frequently Asked Questions
Common questions about Eu2I2O, answered from cross-validated data.
What is Eu2I2O?
Eu2I2O is a thermodynamically stable semimetallic compound consisting of europium, iodine, and oxygen.
What is the band gap of Eu2I2O?
Is Eu2I2O a metal, semiconductor, or insulator?
Is Eu2I2O thermodynamically stable?
How many polymorphs of Eu2I2O are known?
What elements does Eu2I2O contain?
Where does the data for Eu2I2O come from?
How It Compares
As a singular entry in this specific chemical space, Eu2I2O serves as a foundational reference point for understanding the interplay between rare-earth elements, halides, and oxygen in stable lattice configurations.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
Analyze Eu2I2O in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →