Fe2Se4
Fe2Se4 has a DFT band gap of 0.02–0.37 eV across 23 reported structures in 9 space groups. Cross-validated across 2 computational databases.
At a glance
Key Properties
Cross-validated computational properties for Fe2Se4, aggregated across 2 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.
0.02–0.37 eV
Range across DFT structures
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.
0.000 eV/atom
Best (lowest) across sources
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.
On hull (stable)
1 DFT source
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
23
2 databases, 9 space groups
Reference
Frequently Asked Questions
Common questions about Fe2Se4, answered from cross-validated data.
What is the band gap of Fe2Se4?
Fe2Se4 has a DFT-computed band gap of 0.02–0.37 eV across 23 reported structures.
More questions
Is Fe2Se4 a metal, semiconductor, or insulator?
With a band gap up to 0.37 eV it is a semiconductor.
Is Fe2Se4 thermodynamically stable?
Yes — Fe2Se4 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of Fe2Se4 are known?
23 structures of Fe2Se4 are reported across 2 databases, spanning 9 distinct space groups.
What elements does Fe2Se4 contain?
Fe2Se4 contains Fe and Se (2 elements).
Where does the data for Fe2Se4 come from?
Fe2Se4 data is cross-referenced from latticegraph.
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Related Compounds
Other Iron-Based Superconductors in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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