Mo3Os
Mo3Os is a metallic intermetallic compound formed from molybdenum and osmium that is characterized by high structural diversity and thermodynamic stability.
About Mo3Os
Mo3Os is a metallic intermetallic compound composed of molybdenum and osmium. Its electronic character is defined by its metallic nature, lacking a band gap, which makes it a subject of interest for fundamental studies in condensed matter physics and metallurgy. The compound exhibits significant structural complexity, supported by a wealth of reported configurations across various databases.
As a near-hull material, Mo3Os is considered thermodynamically stable and likely synthesizable under controlled conditions. Its ability to form multiple structural arrangements suggests a versatile role in alloy development, where the interplay between these two transition metals can be leveraged to tune physical properties for specialized engineering applications.
Key Properties
Cross-validated computational properties for Mo3Os, 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.
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 Mo3Os, 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. |
|---|---|---|---|---|---|
| Pm-3n (No. 223) | cubic | 0.00 | 0.0018 | -32.799 | 12.88 |
| Pm (No. 6) | Monoclinic | — | — | — | 9.97 |
| Pm (No. 6) | Monoclinic | — | — | — | 5.75 |
| Ama2 (No. 40) | Orthorhombic | — | — | — | 8.67 |
| Pm (No. 6) | Monoclinic | — | — | — | 7.07 |
| Pm (No. 6) | Monoclinic | — | — | — | 12.73 |
| Pnma (No. 62) | — | — | — | — | — |
| Aea2 (No. 41) | Orthorhombic | — | — | — | 11.29 |
| Aea2 (No. 41) | Orthorhombic | — | — | — | 13.98 |
| Aea2 (No. 41) | Orthorhombic | — | — | — | 12.21 |
| P1 (No. 1) | Triclinic | — | — | — | 5.55 |
| P1 (No. 1) | Triclinic | — | — | — | 6.34 |
Applications
Where Mo3Os is used.
Frequently Asked Questions
Common questions about Mo3Os, answered from cross-validated data.
What is Mo3Os?
Mo3Os is a metallic intermetallic compound formed from molybdenum and osmium that is characterized by high structural diversity and thermodynamic stability.
What is Mo3Os used for?
What is the band gap of Mo3Os?
Is Mo3Os a metal, semiconductor, or insulator?
Is Mo3Os thermodynamically stable?
What is the crystal structure of Mo3Os?
What is the density of Mo3Os?
How many polymorphs of Mo3Os are known?
What elements does Mo3Os contain?
Where does the data for Mo3Os come from?
How It Compares
As an unclassified intermetallic, Mo3Os stands as a distinct binary system that highlights the structural flexibility inherent in molybdenum-based transition metal combinations. Without a broad class of direct siblings, it serves as a primary example of how specific stoichiometry between refractory metals can yield stable, metallic phases that occupy a favorable position on the thermodynamic landscape.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
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