LiMg2
LiMg2 is a stable metallic alloy formed from lithium and magnesium that is frequently studied in materials science databases.
About LiMg2
LiMg2 is a metallic intermetallic compound composed of lithium and magnesium. As a thermodynamically stable phase located on the convex hull, it represents a robust structural arrangement of these light metal elements.
The compound is characterized by its metallic electronic nature, which is typical for alloys within this binary system. Its high data richness across multiple databases underscores its significance as a well-documented subject in fundamental materials science research.
Key Properties
Cross-validated computational properties for LiMg2, 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.
Reported Structures
Lowest-energy structures reported for LiMg2, 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. |
|---|---|---|---|---|---|
| I4/mmm (No. 139) | tetragonal | 0.00 | 0.0000 | -3.631 | 1.50 |
| Immm (No. 71) | orthorhombic | 0.00 | 0.0047 | -3.626 | 1.49 |
| C2/m (No. 12) | monoclinic | 0.00 | 0.0106 | -3.620 | 1.49 |
| Cmcm (No. 63) | orthorhombic | 0.00 | 0.0275 | -3.603 | 1.45 |
| C2/m (No. 12) | monoclinic | 0.00 | 0.0280 | -3.603 | 1.43 |
| Cmcm (No. 63) | orthorhombic | 0.00 | 0.0286 | -3.602 | 1.44 |
| Cm (No. 8) | monoclinic | 0.00 | 0.0308 | -3.600 | 1.44 |
| C2/c (No. 15) | monoclinic | 0.00 | 0.0316 | -3.599 | 1.44 |
| R32 (No. 155) | trigonal | 0.00 | 0.0330 | -3.598 | 1.43 |
| Cmcm (No. 63) | orthorhombic | 0.00 | 0.0344 | -3.596 | 1.45 |
| P-62m (No. 189) | hexagonal | 0.00 | 0.0358 | -3.595 | 1.44 |
| P63/mmc (No. 194) | hexagonal | 0.00 | 0.0383 | -3.593 | 1.43 |
Applications
Where LiMg2 is used.
Frequently Asked Questions
Common questions about LiMg2, answered from cross-validated data.
What is LiMg2?
LiMg2 is a stable metallic alloy formed from lithium and magnesium that is frequently studied in materials science databases.
What is LiMg2 used for?
What is the band gap of LiMg2?
Is LiMg2 a metal, semiconductor, or insulator?
Is LiMg2 thermodynamically stable?
What is the crystal structure of LiMg2?
What is the density of LiMg2?
How many polymorphs of LiMg2 are known?
What elements does LiMg2 contain?
Where does the data for LiMg2 come from?
How It Compares
As a stable binary intermetallic, LiMg2 serves as a foundational reference point for understanding the phase behavior and structural evolution of lithium-magnesium alloys.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
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