La4LiMnO8
La4LiMnO8 is a metastable semiconducting oxide containing lanthanum, lithium, and manganese that is primarily studied for its structural characteristics.
About La4LiMnO8
La4LiMnO8 belongs to the class of layered lithium transition-metal oxides, characterized by its complex arrangement of lanthanum, lithium, manganese, and oxygen atoms. As a semiconducting material, it exhibits distinct electronic properties that differentiate it from more conventional metallic or insulating oxides within this family.
While it is considered a metastable phase, the compound is of significant interest to researchers investigating novel oxide frameworks. Its structural configuration provides a unique platform for exploring the interplay between transition metal oxidation states and lithium ion mobility, which is critical for the development of advanced functional materials.
Key Properties
Cross-validated computational properties for La4LiMnO8, 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.
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.
Reported Structures
Lowest-energy structures reported for La4LiMnO8, 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. |
|---|---|---|---|---|---|
| I41/amd (No. 141) | tetragonal | 1.32 | 0.0711 | -8.374 | 6.53 |
| Cmmm (No. 65) | orthorhombic | 1.65 | 0.0712 | -8.374 | 6.54 |
| — | — | — | — | — | 6.54 |
| — | — | — | — | — | 6.54 |
Synthesis Routes
Literature-extracted synthesis procedures targeting La4LiMnO8.
Applications
Where La4LiMnO8 is used.
Frequently Asked Questions
Common questions about La4LiMnO8, answered from cross-validated data.
What is La4LiMnO8?
La4LiMnO8 is a metastable semiconducting oxide containing lanthanum, lithium, and manganese that is primarily studied for its structural characteristics.
What is La4LiMnO8 used for?
What is the band gap of La4LiMnO8?
Is La4LiMnO8 a metal, semiconductor, or insulator?
Is La4LiMnO8 thermodynamically stable?
What is the crystal structure of La4LiMnO8?
What is the density of La4LiMnO8?
How many polymorphs of La4LiMnO8 are known?
How is La4LiMnO8 synthesized?
What elements does La4LiMnO8 contain?
Where does the data for La4LiMnO8 come from?
How It Compares
Within the layered lithium transition-metal oxides class.
Compared to widely utilized battery cathode materials like LiCoO2 and LiNiO2, La4LiMnO8 occupies a more niche position due to its metastability and the inclusion of lanthanum. While LiMn2O4 and Li2MnO3 are extensively documented for their electrochemical performance, La4LiMnO8 represents a more specialized structural variant that challenges the typical stoichiometry found in standard layered lithium-manganese oxides.
Related Compounds
Other Layered Lithium Transition-Metal Oxides in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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