MgOsY2
MgOsY2 is a semiconducting ternary compound consisting of magnesium, osmium, and yttrium that exists in a metastable state.
About MgOsY2
MgOsY2 is a complex ternary material composed of magnesium, osmium, and yttrium. As a semiconducting compound, it occupies a specialized niche in materials research where electronic properties are tuned by the interplay of its constituent elements.
Despite its existence in multiple structural configurations across various databases, the compound is characterized as being above the thermodynamic hull. This suggests that while it can be synthesized or modeled, it remains in a metastable state that requires specific conditions for stabilization.
Key Properties
Cross-validated computational properties for MgOsY2, 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 MgOsY2, 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. |
|---|---|---|---|---|---|
| Immm (No. 71) | orthorhombic | 0.13 | 2.6980 | -3.942 | 0.58 |
| P4/mmm (No. 123) | — | — | — | — | — |
| — | — | — | — | — | 5.96 |
| — | — | — | — | — | 6.73 |
| — | — | — | — | — | 7.32 |
| — | — | — | — | — | 5.71 |
| — | — | — | — | — | 5.71 |
| — | — | — | — | — | 6.73 |
| — | — | — | — | — | 7.44 |
Frequently Asked Questions
Common questions about MgOsY2, answered from cross-validated data.
What is MgOsY2?
MgOsY2 is a semiconducting ternary compound consisting of magnesium, osmium, and yttrium that exists in a metastable state.
What is the band gap of MgOsY2?
Is MgOsY2 a metal, semiconductor, or insulator?
Is MgOsY2 thermodynamically stable?
What is the crystal structure of MgOsY2?
What is the density of MgOsY2?
How many polymorphs of MgOsY2 are known?
What elements does MgOsY2 contain?
Where does the data for MgOsY2 come from?
How It Compares
As a unique ternary phase, MgOsY2 represents an exploratory material in the landscape of complex intermetallics. Without established siblings in its immediate class, it serves as a foundational case study for understanding how heavy transition metals like osmium integrate into magnesium-yttrium frameworks.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
Analyze MgOsY2 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →