Li2Fe3NiO8
Li2Fe3NiO8 has a DFT band gap of 0.07 eV across 18 reported structures in 5 space groups; its reference structure is cubic (P4332 (No. 212)). Cross-validated across 2 computational databases.
At a glance
Key Properties
Cross-validated computational properties for Li2Fe3NiO8, 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.
0.07 eV
Range across DFT structures · ground state: metal
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.
0.032 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.
Metastable
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
18
2 databases, 5 space groups
Validation
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of Li2Fe3NiO8. 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.
0.98 / 1.00
Trust tier: medium
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
0.004 eV
EAH spread across sources
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
2
jarvis, materials_project
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Mixed (most: P4332 (No. 212))
Crystallography
Reported Structures
Lowest-energy structures reported for Li2Fe3NiO8, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| P63mc (No. 186) | hexagonal | 0.07 | 0.0316 | -1.567 | — |
| P4332 (No. 212) | cubic | 0.00 | 0.0358 | -6.897 | 4.18 |
| R3m (No. 160) | trigonal | 0.00 | 0.0670 | -1.532 | — |
| C2/m (No. 12) | monoclinic | 0.00 | 0.0673 | -1.531 | — |
| Cmc21 (No. 36) | orthorhombic | 0.00 | 0.0827 | -6.850 | 4.25 |
| R-3m (No. 166) | trigonal | 0.00 | 0.0909 | -6.842 | 4.40 |
| P1 (No. 1) | triclinic | 0.00 | 0.1000 | -6.832 | 4.15 |
| P21 (No. 4) | monoclinic | 0.00 | 0.1101 | -6.822 | 4.16 |
| P43212 (No. 96) | tetragonal | 0.00 | 0.1298 | -6.803 | 4.60 |
| C2/m (No. 12) | monoclinic | 0.00 | 0.1302 | -6.802 | 4.43 |
| R3m (No. 160) | trigonal | 0.00 | 0.1615 | -6.771 | 4.20 |
| C2/m (No. 12) | monoclinic | 0.00 | 0.1929 | -6.739 | 4.53 |
Reference
Frequently Asked Questions
Common questions about Li2Fe3NiO8, answered from cross-validated data.
What is the band gap of Li2Fe3NiO8?
Li2Fe3NiO8 has a DFT-computed band gap of 0.07 eV across 18 reported structures. Standard DFT underestimates band gaps, so the measured gap is typically larger.
More questions
Is Li2Fe3NiO8 a metal, semiconductor, or insulator?
DFT predicts a near-zero band gap ((semi)metallic). Standard DFT underestimates gaps, so the real material may be a semiconductor.
Is Li2Fe3NiO8 thermodynamically stable?
Li2Fe3NiO8 has a lowest energy above hull of 0.032 eV/atom (metastable).
What is the crystal structure of Li2Fe3NiO8?
The reference structure of Li2Fe3NiO8 is cubic symmetry, space group P4332 (No. 212).
What is the density of Li2Fe3NiO8?
The computed density of the ground-state structure of Li2Fe3NiO8 is 4.18 g/cm³.
How many polymorphs of Li2Fe3NiO8 are known?
18 structures of Li2Fe3NiO8 are reported across 2 databases, spanning 5 distinct space groups.
What elements does Li2Fe3NiO8 contain?
Li2Fe3NiO8 contains Fe, Li, Ni, and O (4 elements).
Where does the data for Li2Fe3NiO8 come from?
Li2Fe3NiO8 data is cross-referenced from jarvis, materials_project, mpaloe.
Explore
Related Compounds
Other Layered Lithium Transition-Metal Oxides in the database.
Data sources & attribution
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
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