B20La4O36
B20La4O36 is a thermodynamically stable, insulating lanthanum borate compound.
About B20La4O36
B20La4O36 is a complex oxide featuring lanthanum and boron, characterized as a wide-band-gap insulator. Its placement on the convex hull indicates that it is a thermodynamically stable phase, making it a robust candidate for materials research where structural integrity is paramount. The compound represents a specific stoichiometry within the lanthanum-boron-oxygen system. Its electronic insulating nature and stability suggest utility in applications requiring dielectric performance or as a host material in specialized solid-state chemistry.
Key Properties
Cross-validated computational properties for B20La4O36, 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 B20La4O36, 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 | 4.50 | 0.0000 | -8.607 | 3.75 |
| — | — | — | — | — | 3.64 |
| No. 0 | unknown | — | — | — | 0.94 |
Applications
Where B20La4O36 is used.
Frequently Asked Questions
Common questions about B20La4O36, answered from cross-validated data.
What is B20La4O36?
B20La4O36 is a thermodynamically stable, insulating lanthanum borate compound.
What is B20La4O36 used for?
What is the band gap of B20La4O36?
Is B20La4O36 a metal, semiconductor, or insulator?
Is B20La4O36 thermodynamically stable?
What is the crystal structure of B20La4O36?
What is the density of B20La4O36?
How many polymorphs of B20La4O36 are known?
What elements does B20La4O36 contain?
Where does the data for B20La4O36 come from?
How It Compares
As a unique phase within the lanthanum borate family, B20La4O36 serves as a distinct structural example of how lanthanum and boron can combine to form stable, insulating oxide networks. While many borates are known for their optical properties, this specific composition provides a stable reference point for exploring the broader landscape of complex metal borates.
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).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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