AgLa2Tl
AgLa2Tl is a thermodynamically stable, semiconducting ternary intermetallic compound composed of silver, lanthanum, and thallium.
About AgLa2Tl
AgLa2Tl is a distinct intermetallic compound characterized by its semiconducting electronic nature. As a material that resides on the convex hull, it exhibits notable thermodynamic stability, making it a significant subject for structural analysis within condensed matter physics.
Researchers value this compound for its consistent structural identity, supported by multiple reports across various databases. Its specific arrangement of silver, lanthanum, and thallium atoms provides a stable platform for investigating the electronic behaviors inherent to this complex ternary system.
Key Properties
Cross-validated computational properties for AgLa2Tl, 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 AgLa2Tl, 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. |
|---|---|---|---|---|---|
| Fm-3m (No. 225) | cubic | 0.00 | 0.0000 | -4.108 | 8.21 |
| Immm (No. 71) | orthorhombic | 0.27 | 2.1499 | -1.958 | 0.75 |
| Fm-3m (No. 225) | — | — | — | — | — |
| — | — | — | — | — | 8.16 |
Applications
Where AgLa2Tl is used.
Frequently Asked Questions
Common questions about AgLa2Tl, answered from cross-validated data.
What is AgLa2Tl?
AgLa2Tl is a thermodynamically stable, semiconducting ternary intermetallic compound composed of silver, lanthanum, and thallium.
What is AgLa2Tl used for?
What is the band gap of AgLa2Tl?
Is AgLa2Tl a metal, semiconductor, or insulator?
Is AgLa2Tl thermodynamically stable?
What is the crystal structure of AgLa2Tl?
What is the density of AgLa2Tl?
How many polymorphs of AgLa2Tl are known?
What elements does AgLa2Tl contain?
Where does the data for AgLa2Tl come from?
How It Compares
As a unique ternary phase, AgLa2Tl serves as a foundational example of stable semiconducting intermetallics. Without direct structural siblings in this specific grouping, it stands as a primary reference point for understanding how the integration of rare-earth elements like lanthanum with transition and post-transition metals influences electronic properties.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- 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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