As2La2O6
As2La2O6 is a stable semiconducting lanthanum arsenate oxide used in materials science research.
About As2La2O6
As2La2O6 is a lanthanum-based arsenate oxide characterized by its semiconducting electronic nature. As a thermodynamically stable compound residing on the convex hull, it represents a robust structural arrangement of its constituent elements.
This material is of interest for its stable configuration, which makes it a candidate for further investigation in solid-state chemistry. Its specific electronic profile suggests potential utility in applications where controlled semiconducting behavior is required.
Key Properties
Cross-validated computational properties for As2La2O6, 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 As2La2O6, 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/m (No. 11) | monoclinic | 2.69 | 0.0000 | -7.754 | 6.14 |
| P21/m (No. 11) | — | — | — | — | — |
| — | — | — | — | — | 6.00 |
Applications
Where As2La2O6 is used.
Frequently Asked Questions
Common questions about As2La2O6, answered from cross-validated data.
What is As2La2O6?
As2La2O6 is a stable semiconducting lanthanum arsenate oxide used in materials science research.
What is As2La2O6 used for?
What is the band gap of As2La2O6?
Is As2La2O6 a metal, semiconductor, or insulator?
Is As2La2O6 thermodynamically stable?
What is the crystal structure of As2La2O6?
What is the density of As2La2O6?
How many polymorphs of As2La2O6 are known?
What elements does As2La2O6 contain?
Where does the data for As2La2O6 come from?
How It Compares
As2La2O6 stands as a stable, well-defined inorganic compound within the broader landscape of lanthanum-based oxides. Unlike more volatile or metastable phases, its position on the convex hull indicates a highly favorable energetic state that facilitates its existence across multiple reported structural configurations.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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