K4SnO4
K4SnO4 is a stable, semiconducting perovskite oxide used in materials science research.
About K4SnO4
K4SnO4 is a thermodynamically stable perovskite oxide that occupies a distinct position on the convex hull. Its electronic character as a semiconductor makes it an intriguing candidate for specialized solid-state applications where precise charge transport properties are required.
As a member of the diverse perovskite oxide family, this compound benefits from a well-documented structural history. Its stability and predictable electronic behavior allow researchers to explore its potential in various functional material architectures.
Key Properties
Cross-validated computational properties for K4SnO4, 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of K4SnO4. 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 K4SnO4, 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. |
|---|---|---|---|---|---|
| — | — | 2.67 | 0.0000 | -1.723 | — |
| P-1 (No. 2) | triclinic | 2.49 | 0.0000 | -1.709 | — |
| P-1 (No. 2) | triclinic | 2.34 | 0.0000 | -4.971 | 3.11 |
| — | — | 1.47 | 0.2113 | -1.512 | — |
| P-1 (No. 2) | triclinic | — | — | — | 3.15 |
| P-1 (No. 2) | triclinic | — | — | — | 3.06 |
| P-1 (No. 2) | triclinic | — | — | — | 2.98 |
| P-1 (No. 2) | triclinic | — | — | — | 3.11 |
Applications
Where K4SnO4 is used.
Frequently Asked Questions
Common questions about K4SnO4, answered from cross-validated data.
What is K4SnO4?
K4SnO4 is a stable, semiconducting perovskite oxide used in materials science research.
What is K4SnO4 used for?
What is the band gap of K4SnO4?
Is K4SnO4 a metal, semiconductor, or insulator?
Is K4SnO4 thermodynamically stable?
What is the crystal structure of K4SnO4?
How many polymorphs of K4SnO4 are known?
What elements does K4SnO4 contain?
Where does the data for K4SnO4 come from?
How It Compares
Within the perovskite oxides class.
Unlike the widely utilized ferroelectric BaTiO3 or the magnetic transition metal-based perovskites like LaMnO3 and LaFeO3, K4SnO4 represents a more niche structural variant. While siblings such as LaAlO3 are frequently employed as substrate materials due to their insulating nature, K4SnO4 offers a semiconducting alternative that expands the functional range of the perovskite class.
Related Compounds
Other Perovskite Oxides in the database.
Data sources & attribution
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (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)
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- cod — Data from the Crystallography Open Database (crystallography.net/cod/). Cite: Grazulis et al., J. Appl. Cryst. 42, 726 (2009). (CC0-1.0)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
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