InPb2Tl
InPb2Tl is a semimetallic ternary intermetallic compound known for its structural complexity and metastable nature.
About InPb2Tl
InPb2Tl is a complex ternary intermetallic compound composed of indium, lead, and thallium. Its electronic structure is characterized as a near-zero-gap semimetallic material, placing it in a unique regime between metallic conductors and semiconductors.
Due to its position above the thermodynamic stability hull, this compound is considered metastable. Despite its inherent instability, it remains a subject of interest in materials science, supported by multiple reported structural variations across various databases.
Key Properties
Cross-validated computational properties for InPb2Tl, aggregated across 3 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 InPb2Tl, 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 | 0.08 | 1.2416 | -45.840 | 0.84 |
| — | — | — | — | — | 9.96 |
| — | — | — | — | — | 10.03 |
| — | — | — | — | — | 10.01 |
| — | — | — | — | — | — |
| — | — | — | — | — | — |
| — | — | — | — | — | — |
| — | — | — | — | — | — |
| — | — | — | — | — | — |
| — | — | — | — | — | — |
| — | — | — | — | — | 9.82 |
Frequently Asked Questions
Common questions about InPb2Tl, answered from cross-validated data.
What is InPb2Tl?
InPb2Tl is a semimetallic ternary intermetallic compound known for its structural complexity and metastable nature.
What is the band gap of InPb2Tl?
Is InPb2Tl a metal, semiconductor, or insulator?
Is InPb2Tl thermodynamically stable?
What is the crystal structure of InPb2Tl?
What is the density of InPb2Tl?
How many polymorphs of InPb2Tl are known?
What elements does InPb2Tl contain?
Where does the data for InPb2Tl come from?
How It Compares
As a unique ternary phase, InPb2Tl represents a specialized case within intermetallic research. Without direct structural siblings in this specific class, it serves as a critical data point for understanding the phase stability and electronic behavior of heavy-metal alloys.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- alexandria — Data from alexandria.
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