Pm2O3
promethium(III) oxide · promethium oxide
Promethium(III) oxide is a stable, wide-gap insulating compound formed from the radioactive element promethium and oxygen.
About promethium(III) oxide
Promethium(III) oxide is a thermodynamically stable compound formed from the rare radioactive element promethium and oxygen. As an insulating material with a wide electronic band gap, it represents a specialized member of the lanthanide oxide series, characterized by its unique radioactive nature and specific structural arrangements. The compound is notable for its structural diversity, with numerous reported crystalline configurations across materials databases. Its stability on the convex hull underscores its significance in fundamental studies of rare earth chemistry and the behavior of radioactive materials in solid-state systems.
Key Properties
Cross-validated computational properties for promethium(III) oxide, 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.
Applications
Where promethium(III) oxide is used.
Frequently Asked Questions
Common questions about promethium(III) oxide, answered from cross-validated data.
What is Pm2O3?
Promethium(III) oxide is a stable, wide-gap insulating compound formed from the radioactive element promethium and oxygen.
What is Pm2O3 used for?
What is the band gap of Pm2O3?
Is Pm2O3 a metal, semiconductor, or insulator?
Is Pm2O3 thermodynamically stable?
How many polymorphs of Pm2O3 are known?
What elements does Pm2O3 contain?
Where does the data for Pm2O3 come from?
How It Compares
As a member of the lanthanide oxide family, Pm2O3 occupies a unique position due to the inherent radioactivity of the promethium cation, which distinguishes its handling and research requirements from more common stable rare-earth oxides.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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