Ag2Mg2
This intermetallic compound is a binary alloy composed of silver and magnesium. It is primarily studied for its structural properties and phase behavior in metallurgical research.
AgMg
Overview
Key Properties
Cross-validated computational properties for Ag2Mg2, 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.
Metallic / not reported
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.
0.000 eV/atom
Best (lowest) across sources
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.
On hull (stable)
3 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
40
5 databases, 16 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for Ag2Mg2, 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-3m (No. 221) | cubic | 0.00 | 0.0000 | -2.467 | 6.09 |
| Pmma (No. 51) | — | — | — | — | — |
| I41/amd (No. 141) | — | — | — | — | — |
| Imma (No. 74) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Fd-3m (No. 227) | — | — | — | — | — |
| Imma (No. 74) | — | — | — | — | — |
| P4/nmm (No. 129) | — | — | — | — | — |
| P4/nmm (No. 129) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
Uses
Applications
Where Ag2Mg2 is used.
Materials science researchAlloy development studies
Reference
Frequently Asked Questions
Common questions about Ag2Mg2, answered from cross-validated data.
What is Ag2Mg2?
This intermetallic compound is a binary alloy composed of silver and magnesium. It is primarily studied for its structural properties and phase behavior in metallurgical research.
More questions
What is Ag2Mg2 used for?
Ag2Mg2 is used in materials science research and alloy development studies.
What is the band gap of Ag2Mg2?
Ag2Mg2 is computed to be metallic (no band gap) in the reported DFT structures.
Is Ag2Mg2 a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is Ag2Mg2 thermodynamically stable?
Yes — Ag2Mg2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of Ag2Mg2?
The lowest-energy reported polymorph of Ag2Mg2 is cubic symmetry, space group Pm-3m (No. 221).
What is the density of Ag2Mg2?
The computed density of the ground-state structure of Ag2Mg2 is 6.09 g/cm³.
How many polymorphs of Ag2Mg2 are known?
40 structures of Ag2Mg2 are reported across 5 databases, spanning 16 distinct space groups.
What elements does Ag2Mg2 contain?
Ag2Mg2 contains Ag and Mg (2 elements).
Where does the data for Ag2Mg2 come from?
Ag2Mg2 data is cross-referenced from materials_project, aflow.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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