Sr2AgPb
Sr2AgPb has a DFT band gap of Metallic / not reported across 2 reported structures in 2 space groups; its lowest-energy polymorph is orthorhombic (Immm (No. 71)). Cross-validated across 2 computational databases.
Key Properties
Cross-validated computational properties for Sr2AgPb, 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of Sr2AgPb. Tight agreement means computed properties can be trusted without re-running calculations.
Only 1 independent DFT source (materials_project) reports a hull energy for Sr2AgPb, so cross-source agreement can't be assessed yet.
Reported Structures
Lowest-energy structures reported for Sr2AgPb, 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 | 0.00 | 1.4741 | -26.047 | 0.47 |
| C2/m (No. 12) | — | — | — | — | — |
Frequently Asked Questions
Common questions about Sr2AgPb, answered from cross-validated data.
What is the band gap of Sr2AgPb?
Sr2AgPb is computed to be metallic (no band gap) in the reported DFT structures.
Is Sr2AgPb a metal, semiconductor, or insulator?
Is Sr2AgPb thermodynamically stable?
What is the crystal structure of Sr2AgPb?
What is the density of Sr2AgPb?
How many polymorphs of Sr2AgPb are known?
What elements does Sr2AgPb contain?
Where does the data for Sr2AgPb come from?
Related Research
Data sources & attribution
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
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