Mg1Os2W1
Mg1Os2W1 is a metastable, semimetallic ternary compound formed from magnesium, osmium, and tungsten.

About Mg1Os2W1
Mg1Os2W1 is a complex ternary inorganic compound composed of magnesium, osmium, and tungsten. It exhibits a near-zero-gap electronic character, placing it in the category of semimetallic materials that often demonstrate unique transport properties due to their limited density of states near the Fermi level.
Despite its structural diversity, with numerous reported configurations, the compound is found above the thermodynamic hull. This suggests that while it can be synthesized under specific conditions, it is inherently metastable and prone to phase separation or transformation into more stable constituent phases.
Key Properties
Cross-validated computational properties for Mg1Os2W1, aggregated across 2 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.
Frequently Asked Questions
Common questions about Mg1Os2W1, answered from cross-validated data.
What is Mg1Os2W1?
Mg1Os2W1 is a metastable, semimetallic ternary compound formed from magnesium, osmium, and tungsten.
What is the band gap of Mg1Os2W1?
Is Mg1Os2W1 a metal, semiconductor, or insulator?
Is Mg1Os2W1 thermodynamically stable?
How many polymorphs of Mg1Os2W1 are known?
What elements does Mg1Os2W1 contain?
Where does the data for Mg1Os2W1 come from?
How It Compares
As a unique ternary phase, Mg1Os2W1 represents a specialized point in the compositional space of magnesium-osmium-tungsten systems. Without direct structural siblings in this specific class, it serves as a critical case study in how heavy transition metals like osmium and tungsten interact with alkaline earth metals to form complex, albeit metastable, electronic structures.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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