In1Mg2Pb1
In1Mg2Pb1 is a semiconducting ternary intermetallic compound known for its structural complexity and metastable nature.
About In1Mg2Pb1
In1Mg2Pb1 is a ternary intermetallic compound composed of indium, magnesium, and lead. It exhibits semiconducting electronic properties, making it a subject of interest for fundamental studies into the behavior of complex metallic systems. Due to its position above the thermodynamic hull, it is considered a metastable phase, which presents unique challenges and opportunities for synthesis and characterization.
With numerous reported structures across databases, this compound serves as a valuable case study for researchers investigating structural diversity in multi-element systems. Its existence in various forms highlights the intricate phase landscape of the indium-magnesium-lead system, contributing to the broader understanding of how these elements interact at the atomic scale.
Key Properties
Cross-validated computational properties for In1Mg2Pb1, 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.
Reported Structures
Lowest-energy structures reported for In1Mg2Pb1, 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. |
|---|---|---|---|---|---|
| Immm (No. 71) | orthorhombic | 0.11 | 1.3684 | -1.121 | 0.49 |
| I4/mmm (No. 139) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| Immm (No. 71) | — | — | — | — | — |
| Pmm2 (No. 25) | — | — | — | — | — |
| Pm (No. 6) | — | — | — | — | — |
Applications
Where In1Mg2Pb1 is used.
Frequently Asked Questions
Common questions about In1Mg2Pb1, answered from cross-validated data.
What is In1Mg2Pb1?
In1Mg2Pb1 is a semiconducting ternary intermetallic compound known for its structural complexity and metastable nature.
What is In1Mg2Pb1 used for?
What is the band gap of In1Mg2Pb1?
Is In1Mg2Pb1 a metal, semiconductor, or insulator?
Is In1Mg2Pb1 thermodynamically stable?
What is the crystal structure of In1Mg2Pb1?
What is the density of In1Mg2Pb1?
How many polymorphs of In1Mg2Pb1 are known?
What elements does In1Mg2Pb1 contain?
Where does the data for In1Mg2Pb1 come from?
How It Compares
As a unique ternary phase, In1Mg2Pb1 occupies a distinct position within its chemical system, representing a complex arrangement of indium, magnesium, and lead that does not readily conform to simple stoichiometric expectations. While it currently stands as a singular study in this context, it serves as an important reference point for identifying the boundaries of stability and structural complexity in similar intermetallic materials.
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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