Hf2N4
Hf2N4 has a DFT band gap of 0.58–1.19 eV across 19 reported structures in 13 space groups. Cross-validated across 2 computational databases.
At a glance
Key Properties
Cross-validated computational properties for Hf2N4, 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.
0.58–1.19 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.
0.415 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.
Above hull
1 DFT source
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
19
2 databases, 13 space groups
Reference
Frequently Asked Questions
Common questions about Hf2N4, answered from cross-validated data.
What is the band gap of Hf2N4?
Hf2N4 has a DFT-computed band gap of 0.58–1.19 eV across 19 reported structures.
More questions
Is Hf2N4 a metal, semiconductor, or insulator?
With a band gap up to 1.19 eV it is a semiconductor.
Is Hf2N4 thermodynamically stable?
Hf2N4 has a lowest energy above hull of 0.415 eV/atom (above hull).
How many polymorphs of Hf2N4 are known?
19 structures of Hf2N4 are reported across 2 databases, spanning 13 distinct space groups.
What elements does Hf2N4 contain?
Hf2N4 contains Hf and N (2 elements).
Where does the data for Hf2N4 come from?
Hf2N4 data is cross-referenced from latticegraph.
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Related Compounds
Other Ultra-High-Temperature Ceramics in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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