Mg4Si3
Mg4Si3 is a metallic magnesium-silicon compound studied for its potential role in advanced battery anode architectures.

About Mg4Si3
Mg4Si3 is a metallic compound within the silicon anode materials class, characterized by its complex structural landscape. Its electronic nature suggests a conductive profile, making it a subject of interest for researchers investigating charge transport in battery electrode systems.
Despite its status as a metastable phase located above the thermodynamic hull, it remains a notable entry in structural databases. Its existence highlights the diverse bonding environments possible between magnesium and silicon, which are critical for understanding phase evolution in high-capacity energy storage materials.
Key Properties
Cross-validated computational properties for Mg4Si3, 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.
Applications
Where Mg4Si3 is used.
Frequently Asked Questions
Common questions about Mg4Si3, answered from cross-validated data.
What is Mg4Si3?
Mg4Si3 is a metallic magnesium-silicon compound studied for its potential role in advanced battery anode architectures.
What is Mg4Si3 used for?
What is the band gap of Mg4Si3?
Is Mg4Si3 a metal, semiconductor, or insulator?
Is Mg4Si3 thermodynamically stable?
How many polymorphs of Mg4Si3 are known?
What elements does Mg4Si3 contain?
Where does the data for Mg4Si3 come from?
How It Compares
Within the silicon anode materials class.
Within the family of silicon-based anode materials, Mg4Si3 occupies a unique position compared to more stable, well-characterized compounds like Mg2Si or pure Si. While Si is the industry standard for high-capacity anodes and Mg2Si is a well-documented binary phase, Mg4Si3 represents a more exotic, metastable stoichiometry that provides insight into the broader phase space of magnesium silicides.
Related Compounds
Other Silicon Anode Materials in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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