LaWN3
LaWN3 is a thermodynamically stable semiconducting ternary nitride compound.
About LaWN3
LaWN3 is a complex ternary nitride that exhibits semiconducting electronic behavior. As a thermodynamically stable phase residing on the convex hull, it represents a robust material configuration that has garnered significant interest within computational materials science research.
Its structural landscape is well-documented, with numerous reported configurations across major databases. This depth of data underscores its importance as a subject for understanding the interplay between lanthanum, tungsten, and nitrogen in stable crystalline frameworks.
Key Properties
Cross-validated computational properties for LaWN3, 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 LaWN3. 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.
Reported Structures
Lowest-energy structures reported for LaWN3, 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. |
|---|---|---|---|---|---|
| — | — | 1.26 | 0.0000 | -1.133 | — |
| R3c (No. 161) | trigonal | 1.18 | 0.0000 | -22.944 | 9.32 |
| R3m (No. 160) | trigonal | 0.82 | 0.0000 | -1.288 | — |
| Amm2 (No. 38) | orthorhombic | 0.00 | 0.0155 | -22.929 | 9.18 |
| P4mm (No. 99) | tetragonal | 0.00 | 0.0197 | -22.924 | 9.04 |
| R3m (No. 160) | trigonal | 0.71 | 0.0233 | -22.921 | 9.14 |
| Pnma (No. 62) | orthorhombic | 0.00 | 0.0306 | -22.913 | 9.41 |
| R-3c (No. 167) | trigonal | 0.00 | 0.0341 | -22.910 | 9.40 |
| C2/c (No. 15) | monoclinic | 2.40 | 0.0373 | -22.907 | 7.29 |
| P21/m (No. 11) | monoclinic | 1.71 | 0.0494 | -22.895 | 7.10 |
| Cm (No. 8) | monoclinic | 0.00 | 2.4461 | -20.498 | 9.80 |
| R-3c (No. 167) | trigonal | — | — | — | 9.40 |
Applications
Where LaWN3 is used.
Frequently Asked Questions
Common questions about LaWN3, answered from cross-validated data.
What is LaWN3?
LaWN3 is a thermodynamically stable semiconducting ternary nitride compound.
What is LaWN3 used for?
What is the band gap of LaWN3?
Is LaWN3 a metal, semiconductor, or insulator?
Is LaWN3 thermodynamically stable?
What is the crystal structure of LaWN3?
What is the density of LaWN3?
How many polymorphs of LaWN3 are known?
What elements does LaWN3 contain?
Where does the data for LaWN3 come from?
How It Compares
As a unique ternary nitride, LaWN3 serves as a foundational example of stable complex nitrides. It occupies a distinct niche in materials discovery, offering a stable semiconducting platform that provides a baseline for exploring the properties of similar metal-nitride systems.
Data sources & attribution
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
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