Mg2Pb2
This intermetallic compound is composed of magnesium and lead. It is primarily studied in materials science research for its structural properties and behavior within binary alloy systems.
MgPb
Overview
Key Properties
Cross-validated computational properties for Mg2Pb2, 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.
0.009 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.
Near hull (likely stable)
3 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
63
5 databases, 15 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for Mg2Pb2, 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. |
|---|---|---|---|---|---|
| Pmma (No. 51) | orthorhombic | 0.00 | 0.0087 | -2.690 | 7.48 |
| C2/m (No. 12) | monoclinic | 0.00 | 0.0246 | -2.674 | 7.46 |
| P63/mmc (No. 194) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 1.20 |
| Cmcm (No. 63) | — | — | — | — | — |
| P4/nmm (No. 129) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| P4/nmm (No. 129) | — | — | — | — | — |
| Imma (No. 74) | — | — | — | — | — |
| P4/nmm (No. 129) | — | — | — | — | — |
| P4/nmm (No. 129) | — | — | — | — | — |
Uses
Applications
Where Mg2Pb2 is used.
Materials science researchAlloy development studies
Reference
Frequently Asked Questions
Common questions about Mg2Pb2, answered from cross-validated data.
What is Mg2Pb2?
This intermetallic compound is composed of magnesium and lead. It is primarily studied in materials science research for its structural properties and behavior within binary alloy systems.
More questions
What is Mg2Pb2 used for?
Mg2Pb2 is used in materials science research and alloy development studies.
What is the band gap of Mg2Pb2?
Mg2Pb2 is computed to be metallic (no band gap) in the reported DFT structures.
Is Mg2Pb2 a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is Mg2Pb2 thermodynamically stable?
Mg2Pb2 has a lowest energy above hull of 0.009 eV/atom (near hull (likely stable)).
What is the crystal structure of Mg2Pb2?
The lowest-energy reported polymorph of Mg2Pb2 is orthorhombic symmetry, space group Pmma (No. 51).
What is the density of Mg2Pb2?
The computed density of the ground-state structure of Mg2Pb2 is 7.48 g/cm³.
How many polymorphs of Mg2Pb2 are known?
63 structures of Mg2Pb2 are reported across 5 databases, spanning 15 distinct space groups.
What elements does Mg2Pb2 contain?
Mg2Pb2 contains Mg and Pb (2 elements).
Where does the data for Mg2Pb2 come from?
Mg2Pb2 data is cross-referenced from materials_project, aflow, cod, nomad, omat24.
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).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- 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).
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