SiOs
Osmium silicide is a binary inorganic compound composed of osmium and silicon. It is primarily studied for its potential properties in specialized electronic and high-temperature material applications.
Overview
Key Properties
Cross-validated computational properties for SiOs, aggregated across 4 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.
0.51 eV
Range across DFT structures
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.
0.000 eV/atom
Best (lowest) across sources
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.
On hull (stable)
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
216
4 databases, 28 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for SiOs, 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. |
|---|---|---|---|---|---|
| P213 (No. 198) | cubic | 0.51 | 0.0000 | -31.272 | 13.39 |
| Pm-3m (No. 221) | cubic | 0.00 | 0.0271 | -31.245 | 14.30 |
| C2/m (No. 12) | Monoclinic | — | — | — | 15.94 |
| Pm-3m (No. 221) | — | — | — | — | — |
| P1 (No. 1) | Triclinic | — | — | — | 9.88 |
| P-1 (No. 2) | Triclinic | — | — | — | 7.85 |
| P21/m (No. 11) | Monoclinic | — | — | — | 10.73 |
| P-1 (No. 2) | Triclinic | — | — | — | 9.31 |
| C2/m (No. 12) | Monoclinic | — | — | — | 12.78 |
| P1 (No. 1) | Triclinic | — | — | — | 10.11 |
| P-1 (No. 2) | Triclinic | — | — | — | 10.01 |
| Pc (No. 7) | Monoclinic | — | — | — | 12.73 |
Uses
Applications
Where SiOs is used.
Materials science researchSemiconductor development studies
Reference
Frequently Asked Questions
Common questions about SiOs, answered from cross-validated data.
What is SiOs?
Osmium silicide is a binary inorganic compound composed of osmium and silicon. It is primarily studied for its potential properties in specialized electronic and high-temperature material applications.
More questions
What is SiOs used for?
SiOs is used in materials science research and semiconductor development studies.
What is the band gap of SiOs?
SiOs has a DFT-computed band gap of 0.51 eV across 216 reported structures.
Is SiOs a metal, semiconductor, or insulator?
With a band gap up to 0.51 eV it is a semiconductor.
Is SiOs thermodynamically stable?
Yes — SiOs sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of SiOs?
The lowest-energy reported polymorph of SiOs is cubic symmetry, space group P213 (No. 198).
What is the density of SiOs?
The computed density of the ground-state structure of SiOs is 13.39 g/cm³.
How many polymorphs of SiOs are known?
216 structures of SiOs are reported across 4 databases, spanning 28 distinct space groups.
What elements does SiOs contain?
SiOs contains Os and Si (2 elements).
Where does the data for SiOs come from?
SiOs data is cross-referenced from materials_project, mpaloe, jarvis.
Explore
Related Compounds
Other Silicon Anode Materials in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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