Ge3Os2
This compound is an intermetallic material composed of germanium and osmium. It is primarily studied in the field of condensed matter physics for its unique structural and electronic properties.
GeOs
Overview
Key Properties
Cross-validated computational properties for Ge3Os2, 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.
1.08–1.15 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.
24
3 databases, 10 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for Ge3Os2, 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. |
|---|---|---|---|---|---|
| Pbcn (No. 60) | orthorhombic | 1.08 | 0.0000 | -29.601 | 12.87 |
| P-4c2 (No. 116) | tetragonal | 1.15 | 0.0122 | -29.589 | 12.80 |
| P-4c2 (No. 116) | Tetragonal | — | — | — | 12.50 |
| P-1 (No. 2) | Triclinic | — | — | — | 8.00 |
| C2/m (No. 12) | Monoclinic | — | — | — | 15.13 |
| P3m1 (No. 156) | Trigonal | — | — | — | 11.11 |
| P3m1 (No. 156) | Trigonal | — | — | — | 12.69 |
| Cm (No. 8) | Monoclinic | — | — | — | 9.81 |
| R32 (No. 155) | Trigonal | — | — | — | 11.37 |
| C2 (No. 5) | Monoclinic | — | — | — | 10.56 |
| P-4c2 (No. 116) | Tetragonal | — | — | — | 12.80 |
| P-4c2 (No. 116) | Tetragonal | — | — | — | 13.40 |
Uses
Applications
Where Ge3Os2 is used.
Materials science researchSolid-state physics studies
Reference
Frequently Asked Questions
Common questions about Ge3Os2, answered from cross-validated data.
What is Ge3Os2?
This compound is an intermetallic material composed of germanium and osmium. It is primarily studied in the field of condensed matter physics for its unique structural and electronic properties.
More questions
What is Ge3Os2 used for?
Ge3Os2 is used in materials science research and solid-state physics studies.
What is the band gap of Ge3Os2?
Ge3Os2 has a DFT-computed band gap of 1.08–1.15 eV across 24 reported structures.
Is Ge3Os2 a metal, semiconductor, or insulator?
With a band gap up to 1.15 eV it is a semiconductor.
Is Ge3Os2 thermodynamically stable?
Yes — Ge3Os2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of Ge3Os2?
The lowest-energy reported polymorph of Ge3Os2 is orthorhombic symmetry, space group Pbcn (No. 60).
What is the density of Ge3Os2?
The computed density of the ground-state structure of Ge3Os2 is 12.87 g/cm³.
How many polymorphs of Ge3Os2 are known?
24 structures of Ge3Os2 are reported across 3 databases, spanning 10 distinct space groups.
What elements does Ge3Os2 contain?
Ge3Os2 contains Ge and Os (2 elements).
Where does the data for Ge3Os2 come from?
Ge3Os2 data is cross-referenced from materials_project, mpaloe, aflow.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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