Co2In1Nb1
Co2In1Nb1 is a semiconducting ternary compound consisting of cobalt, indium, and niobium that exhibits a wide range of structural configurations.
About Co2In1Nb1
Co2In1Nb1 is a complex ternary compound composed of cobalt, indium, and niobium. As a semiconducting material, it represents a unique intersection of transition metal and post-transition metal chemistry, offering a distinct electronic profile that distinguishes it from simpler binary alloys. The compound is characterized by a significant number of reported structural variations despite being situated above the thermodynamic hull. This suggests a complex energy landscape that warrants further investigation into its synthesis and potential metastable phases.
Key Properties
Cross-validated computational properties for Co2In1Nb1, 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.
Reported Structures
Lowest-energy structures reported for Co2In1Nb1, 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 | 0.24 | 2.8698 | -4.022 | 0.68 |
| P4/mmm (No. 123) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
| Cm (No. 8) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
Frequently Asked Questions
Common questions about Co2In1Nb1, answered from cross-validated data.
What is Co2In1Nb1?
Co2In1Nb1 is a semiconducting ternary compound consisting of cobalt, indium, and niobium that exhibits a wide range of structural configurations.
What is the band gap of Co2In1Nb1?
Is Co2In1Nb1 a metal, semiconductor, or insulator?
Is Co2In1Nb1 thermodynamically stable?
What is the crystal structure of Co2In1Nb1?
What is the density of Co2In1Nb1?
How many polymorphs of Co2In1Nb1 are known?
What elements does Co2In1Nb1 contain?
Where does the data for Co2In1Nb1 come from?
How It Compares
As a singular entry in this context, Co2In1Nb1 serves as an intriguing case study for semiconducting ternary systems that exist in a metastable state, highlighting the structural diversity possible within cobalt-indium-niobium combinations.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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