Be4Ho4O14Si2
Be4Ho4O14Si2 is a stable, wide-gap insulating compound composed of beryllium, holmium, oxygen, and silicon.
About Be4Ho4O14Si2
Be4Ho4O14Si2 is a complex oxide featuring beryllium, holmium, and silicon. As a thermodynamically stable phase located on the convex hull, it represents a robust crystalline arrangement that maintains structural integrity under standard conditions.
This material functions as a wide-gap insulator, a characteristic that makes it of interest for specialized electronic or optical applications where insulating behavior is required. Its unique combination of rare-earth holmium and light beryllium elements provides a distinct chemical profile within its structural class.
Key Properties
Cross-validated computational properties for Be4Ho4O14Si2, 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 Be4Ho4O14Si2, 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. |
|---|---|---|---|---|---|
| P-421m (No. 113) | tetragonal | 5.09 | 0.0000 | -8.315 | 6.34 |
| P-421m (No. 113) | — | — | — | — | — |
| — | — | — | — | — | 5.27 |
Applications
Where Be4Ho4O14Si2 is used.
Frequently Asked Questions
Common questions about Be4Ho4O14Si2, answered from cross-validated data.
What is Be4Ho4O14Si2?
Be4Ho4O14Si2 is a stable, wide-gap insulating compound composed of beryllium, holmium, oxygen, and silicon.
What is Be4Ho4O14Si2 used for?
What is the band gap of Be4Ho4O14Si2?
Is Be4Ho4O14Si2 a metal, semiconductor, or insulator?
Is Be4Ho4O14Si2 thermodynamically stable?
What is the crystal structure of Be4Ho4O14Si2?
What is the density of Be4Ho4O14Si2?
How many polymorphs of Be4Ho4O14Si2 are known?
What elements does Be4Ho4O14Si2 contain?
Where does the data for Be4Ho4O14Si2 come from?
How It Compares
As a thermodynamically stable member of its chemical family, this compound serves as a baseline for understanding the structural interplay between rare-earth elements and silicate-beryllate frameworks in insulating materials.
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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