AgLaSb2
AgLaSb2 is a stable metallic intermetallic compound formed from silver, lanthanum, and antimony.
About AgLaSb2
AgLaSb2 is a metallic ternary compound composed of silver, lanthanum, and antimony. As a thermodynamically stable phase located on the convex hull, it represents a robust structural arrangement of these elements, making it a subject of interest for fundamental materials science studies.
Its metallic character suggests high electrical conductivity, which is typical for intermetallic phases containing heavy p-block elements. With multiple reported structures across various databases, this compound is well-documented and serves as a reliable reference point for researchers investigating complex ternary systems.
Key Properties
Cross-validated computational properties for AgLaSb2, 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.
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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of AgLaSb2. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for AgLaSb2, 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. |
|---|---|---|---|---|---|
| P4/nmm (No. 129) | tetragonal | 0.00 | 0.0000 | -26.478 | 7.59 |
| R-3m (No. 166) | — | — | — | — | — |
| — | — | — | — | — | 7.30 |
| — | — | — | — | — | 6.78 |
| — | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 3.97 |
| — | — | — | — | — | 7.60 |
Frequently Asked Questions
Common questions about AgLaSb2, answered from cross-validated data.
What is AgLaSb2?
AgLaSb2 is a stable metallic intermetallic compound formed from silver, lanthanum, and antimony.
What is the band gap of AgLaSb2?
Is AgLaSb2 a metal, semiconductor, or insulator?
Is AgLaSb2 thermodynamically stable?
What is the crystal structure of AgLaSb2?
What is the density of AgLaSb2?
How many polymorphs of AgLaSb2 are known?
What elements does AgLaSb2 contain?
Where does the data for AgLaSb2 come from?
How It Compares
As a stable intermetallic phase, AgLaSb2 occupies a distinct position within the landscape of ternary silver-lanthanum-antimonides, serving as a foundational example of how these elements combine into a thermodynamically favored configuration.
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).
- alexandria — Data from alexandria.
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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