Li4O8Y4
Li4O8Y4 is a stable, insulating lithium yttrium oxide compound used in materials research.
About Li4O8Y4
Li4O8Y4 is a stable lithium-based oxide characterized by its wide-gap insulating electronic structure. As a member of the lithium oxide family, it represents a specialized inorganic framework that maintains structural integrity on the convex hull, making it a subject of interest for fundamental materials science studies.
This compound is primarily explored in research environments where its insulating properties and specific atomic arrangement are leveraged for solid-state applications. Its existence across multiple structural databases highlights its significance as a distinct phase within complex lithium-oxygen-yttrium systems.
Key Properties
Cross-validated computational properties for Li4O8Y4, 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.
Reported Structures
Lowest-energy structures reported for Li4O8Y4, 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. |
|---|---|---|---|---|---|
| P21/c (No. 14) | monoclinic | 4.39 | 0.0000 | -7.826 | 4.10 |
| — | — | — | — | — | 3.43 |
| P21/c (No. 14) | — | — | — | — | — |
Applications
Where Li4O8Y4 is used.
Frequently Asked Questions
Common questions about Li4O8Y4, answered from cross-validated data.
What is Li4O8Y4?
Li4O8Y4 is a stable, insulating lithium yttrium oxide compound used in materials research.
What is Li4O8Y4 used for?
What is the band gap of Li4O8Y4?
Is Li4O8Y4 a metal, semiconductor, or insulator?
Is Li4O8Y4 thermodynamically stable?
What is the crystal structure of Li4O8Y4?
What is the density of Li4O8Y4?
How many polymorphs of Li4O8Y4 are known?
What elements does Li4O8Y4 contain?
Where does the data for Li4O8Y4 come from?
How It Compares
Within the lithium oxides class.
Unlike the well-known electrochemically active cathode materials such as LiCoO2 or LiMn2O4, which are designed for high-performance ion transport and redox activity, Li4O8Y4 functions as a wide-gap insulator. While compounds like Li2O serve as fundamental binary oxides, Li4O8Y4 offers a more complex structural architecture that differentiates it from the transition-metal-heavy members of the lithium oxide class.
Related Compounds
Other Lithium 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).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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