La2MgNiO6
La2MgNiO6 is a thermodynamically stable, semiconducting complex oxide composed of lanthanum, magnesium, nickel, and oxygen.
About La2MgNiO6
La2MgNiO6 is a complex oxide featuring lanthanum, magnesium, nickel, and oxygen. As a thermodynamically stable compound residing on the convex hull, it represents a robust structural configuration within its chemical system. Its electronic character is defined as semiconducting, making it a subject of interest for researchers investigating oxide-based electronic materials.
With multiple reported structures across various databases, this material is well-documented for its compositional stability. Its unique arrangement of cations provides a stable framework that is essential for fundamental studies in solid-state chemistry and the development of new functional materials.
Key Properties
Cross-validated computational properties for La2MgNiO6, aggregated across 4 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 La2MgNiO6. 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 La2MgNiO6, 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. |
|---|---|---|---|---|---|
| R-3 (No. 148) | trigonal | 1.39 | 0.0000 | -7.510 | 6.53 |
| R-3 (No. 148) | trigonal | 1.16 | 0.0000 | -2.825 | — |
| — | — | 1.27 | 0.0790 | -2.695 | — |
| R-3 (No. 148) | trigonal | — | — | — | 6.53 |
| R-3 (No. 148) | trigonal | — | — | — | 6.70 |
| R-3 (No. 148) | trigonal | — | — | — | 6.63 |
Applications
Where La2MgNiO6 is used.
Frequently Asked Questions
Common questions about La2MgNiO6, answered from cross-validated data.
What is La2MgNiO6?
La2MgNiO6 is a thermodynamically stable, semiconducting complex oxide composed of lanthanum, magnesium, nickel, and oxygen.
What is La2MgNiO6 used for?
What is the band gap of La2MgNiO6?
Is La2MgNiO6 a metal, semiconductor, or insulator?
Is La2MgNiO6 thermodynamically stable?
What is the crystal structure of La2MgNiO6?
What is the density of La2MgNiO6?
How many polymorphs of La2MgNiO6 are known?
What elements does La2MgNiO6 contain?
Where does the data for La2MgNiO6 come from?
How It Compares
As a thermodynamically stable oxide, La2MgNiO6 serves as a key reference point for understanding the phase stability and electronic behavior of complex lanthanum-based perovskite-like structures.
Data sources & attribution
- 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)
- 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)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
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