TiCo2Sn
TiCo2Sn has a DFT band gap of Metallic / not reported across 11 reported structures in 3 space groups; its lowest-energy polymorph is cubic (Fm-3m (No. 225)). Cross-validated across 4 computational databases.
At a glance
Key Properties
Cross-validated computational properties for TiCo2Sn, aggregated across 4 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.
0.000 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.
On hull (stable)
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
11
4 databases, 3 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for TiCo2Sn, 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 | -6.914 | 8.49 |
| P4/mmm (No. 123) | tetragonal | 0.00 | 0.1475 | -6.767 | 8.28 |
| Fm-3m (No. 225) | — | — | — | — | — |
| Fm-3m (No. 225) | Cubic | — | — | — | 8.38 |
| Fm-3m (No. 225) | Cubic | — | — | — | 8.61 |
| Fm-3m (No. 225) | Cubic | — | — | — | 8.49 |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | Tetragonal | — | — | — | 8.28 |
| P4/mmm (No. 123) | Tetragonal | — | — | — | 8.24 |
| No. 0 | unknown | — | — | — | 2.12 |
| P4/mmm (No. 123) | Tetragonal | — | — | — | 8.23 |
Reference
Frequently Asked Questions
Common questions about TiCo2Sn, answered from cross-validated data.
What is the band gap of TiCo2Sn?
TiCo2Sn is computed to be metallic (no band gap) in the reported DFT structures.
More questions
Is TiCo2Sn a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is TiCo2Sn thermodynamically stable?
Yes — TiCo2Sn sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of TiCo2Sn?
The lowest-energy reported polymorph of TiCo2Sn is cubic symmetry, space group Fm-3m (No. 225).
What is the density of TiCo2Sn?
The computed density of the ground-state structure of TiCo2Sn is 8.49 g/cm³.
How many polymorphs of TiCo2Sn are known?
11 structures of TiCo2Sn are reported across 4 databases, spanning 3 distinct space groups.
What elements does TiCo2Sn contain?
TiCo2Sn contains Co, Sn, and Ti (3 elements).
Where does the data for TiCo2Sn come from?
TiCo2Sn data is cross-referenced from materials_project, jarvis, mpaloe, cod.
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Related Compounds
Other Half-Heusler Thermoelectrics in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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