ScSn3
Scandium tristannide is an intermetallic compound composed of scandium and tin. It is primarily studied in the field of materials science for its structural properties and its behavior within complex alloy systems.
ScSn
Overview
Key Properties
Cross-validated computational properties for ScSn3, 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.
Metallic / not reported
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.
0.094 eV/atom
Best (lowest) across sources
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.
Metastable
3 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
27
5 databases, 10 space groups
Validation
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of ScSn3. 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.
1.00 / 1.00
Trust tier: medium
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
0.000 eV
EAH spread across sources
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
2
jarvis, materials_project
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
All match
Crystallography
Reported Structures
Lowest-energy structures reported for ScSn3, 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. |
|---|---|---|---|---|---|
| I4/mmm (No. 139) | tetragonal | 0.00 | 0.0936 | -21.671 | 6.69 |
| P63/mmc (No. 194) | hexagonal | 0.00 | 0.1033 | -21.661 | 6.63 |
| Pmm2 (No. 25) | Orthorhombic | — | — | — | 4.65 |
| I4/mmm (No. 139) | — | — | — | — | — |
| P1 (No. 1) | Triclinic | — | — | — | 6.22 |
| C2 (No. 5) | Monoclinic | — | — | — | 5.73 |
| P1 (No. 1) | Triclinic | — | — | — | 7.27 |
| P63/mmc (No. 194) | Hexagonal | — | — | — | 6.83 |
| Pm (No. 6) | Monoclinic | — | — | — | 9.78 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 5.89 |
| P63/mmc (No. 194) | Hexagonal | — | — | — | 6.78 |
| P63/mmc (No. 194) | Hexagonal | — | — | — | 6.63 |
Uses
Applications
Where ScSn3 is used.
Materials science researchFundamental condensed matter physics studies
Reference
Frequently Asked Questions
Common questions about ScSn3, answered from cross-validated data.
What is ScSn3?
Scandium tristannide is an intermetallic compound composed of scandium and tin. It is primarily studied in the field of materials science for its structural properties and its behavior within complex alloy systems.
More questions
What is ScSn3 used for?
ScSn3 is used in materials science research and fundamental condensed matter physics studies.
What is the band gap of ScSn3?
ScSn3 is computed to be metallic (no band gap) in the reported DFT structures.
Is ScSn3 a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is ScSn3 thermodynamically stable?
ScSn3 has a lowest energy above hull of 0.094 eV/atom (metastable).
What is the crystal structure of ScSn3?
The lowest-energy reported polymorph of ScSn3 is tetragonal symmetry, space group I4/mmm (No. 139).
What is the density of ScSn3?
The computed density of the ground-state structure of ScSn3 is 6.69 g/cm³.
How many polymorphs of ScSn3 are known?
27 structures of ScSn3 are reported across 5 databases, spanning 10 distinct space groups.
What elements does ScSn3 contain?
ScSn3 contains Sc and Sn (2 elements).
Where does the data for ScSn3 come from?
ScSn3 data is cross-referenced from materials_project, mpaloe, jarvis, omat24.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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