Ge3Os2
Ge3Os2 is a stable semiconducting intermetallic compound formed from germanium and osmium.
About Ge3Os2
Ge3Os2 is a distinct intermetallic compound composed of germanium and osmium. As a thermodynamically stable phase located on the convex hull, it represents a robust structural arrangement within its chemical system.
This material exhibits semiconducting electronic character, making it a subject of interest for fundamental studies in condensed matter physics. Its structural diversity is highlighted by numerous reported configurations across multiple databases, underscoring its significance in materials science research.
Key Properties
Cross-validated computational properties for Ge3Os2, aggregated across 5 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of Ge3Os2. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
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 | 0.74 | 0.0000 | -29.601 | 12.87 |
| — | — | 1.04 | 0.0040 | -0.070 | — |
| — | — | 1.05 | 0.0120 | -0.062 | — |
| P-4c2 (No. 116) | tetragonal | 0.85 | 0.0122 | -29.589 | 12.80 |
| P-1 (No. 2) | triclinic | — | — | — | 8.00 |
| P-1 (No. 2) | triclinic | — | — | — | 15.18 |
| P-1 (No. 2) | triclinic | — | — | — | 11.96 |
| P-1 (No. 2) | triclinic | — | — | — | 12.27 |
| C2 (No. 5) | monoclinic | — | — | — | 12.52 |
| Cm (No. 8) | monoclinic | — | — | — | 9.81 |
| Cm (No. 8) | monoclinic | — | — | — | 12.10 |
| Cm (No. 8) | monoclinic | — | — | — | 11.46 |
Frequently Asked Questions
Common questions about Ge3Os2, answered from cross-validated data.
What is Ge3Os2?
Ge3Os2 is a stable semiconducting intermetallic compound formed from germanium and osmium.
What is the band gap of Ge3Os2?
Is Ge3Os2 a metal, semiconductor, or insulator?
Is Ge3Os2 thermodynamically stable?
What is the crystal structure of Ge3Os2?
What is the density of Ge3Os2?
How many polymorphs of Ge3Os2 are known?
What elements does Ge3Os2 contain?
Where does the data for Ge3Os2 come from?
How It Compares
As a thermodynamically stable semiconducting phase, Ge3Os2 serves as a foundational reference point for understanding the complex bonding interactions between transition metals and group fourteen elements.
Data sources & attribution
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
- cod — Data from the Crystallography Open Database (crystallography.net/cod/). Cite: Grazulis et al., J. Appl. Cryst. 42, 726 (2009). (CC0-1.0)
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