B20Be8O44Y4
B20Be8O44Y4 is a thermodynamically stable, insulating quaternary oxide containing boron, beryllium, oxygen, and yttrium.
About B20Be8O44Y4
B20Be8O44Y4 is a complex inorganic compound composed of boron, beryllium, oxygen, and yttrium. As a wide-band-gap insulator, it exhibits robust electronic characteristics that make it an intriguing subject for fundamental materials research.
This material is noted for being thermodynamically stable, sitting directly on the convex hull. Its structural integrity and insulating nature suggest potential utility in specialized high-performance electronic or optical environments where stability is paramount.
Key Properties
Cross-validated computational properties for B20Be8O44Y4, 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 B20Be8O44Y4, 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. |
|---|---|---|---|---|---|
| Pna21 (No. 33) | orthorhombic | 5.39 | 0.0000 | -8.449 | 2.95 |
| No. 0 | unknown | — | — | — | 0.76 |
| — | — | — | — | — | 2.93 |
Applications
Where B20Be8O44Y4 is used.
Frequently Asked Questions
Common questions about B20Be8O44Y4, answered from cross-validated data.
What is B20Be8O44Y4?
B20Be8O44Y4 is a thermodynamically stable, insulating quaternary oxide containing boron, beryllium, oxygen, and yttrium.
What is B20Be8O44Y4 used for?
What is the band gap of B20Be8O44Y4?
Is B20Be8O44Y4 a metal, semiconductor, or insulator?
Is B20Be8O44Y4 thermodynamically stable?
What is the crystal structure of B20Be8O44Y4?
What is the density of B20Be8O44Y4?
How many polymorphs of B20Be8O44Y4 are known?
What elements does B20Be8O44Y4 contain?
Where does the data for B20Be8O44Y4 come from?
How It Compares
As a unique inorganic phase, B20Be8O44Y4 serves as a distinct example of how complex multi-element oxides can achieve thermodynamic stability, setting a benchmark for future exploration of similar quaternary systems.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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