Co6Fe2
Co6Fe2 is a metastable metallic compound consisting of cobalt and iron atoms arranged in a specific crystalline structure.
About Co6Fe2
Co6Fe2 is a metallic intermetallic compound composed of cobalt and iron. As a metastable phase, it represents a specific structural configuration within the cobalt-iron binary system that is of significant interest for fundamental materials research.
Its metallic nature and complex structural landscape make it a subject of extensive investigation across multiple crystallographic databases. Researchers study this compound to better understand the phase stability and magnetic behavior inherent to transition metal alloys.
Key Properties
Cross-validated computational properties for Co6Fe2, 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.
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 Co6Fe2, 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. |
|---|---|---|---|---|---|
| Pm-3m (No. 221) | cubic | 0.00 | 0.0566 | -7.439 | 8.74 |
| P4/mmm (No. 123) | tetragonal | 0.00 | 0.0814 | -7.414 | 8.99 |
| Cmcm (No. 63) | — | — | — | — | — |
| P-1 (No. 2) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
| P-1 (No. 2) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| P21/m (No. 11) | — | — | — | — | — |
| Imma (No. 74) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| P4/nmm (No. 129) | — | — | — | — | — |
Applications
Where Co6Fe2 is used.
Frequently Asked Questions
Common questions about Co6Fe2, answered from cross-validated data.
What is Co6Fe2?
Co6Fe2 is a metastable metallic compound consisting of cobalt and iron atoms arranged in a specific crystalline structure.
What is Co6Fe2 used for?
What is the band gap of Co6Fe2?
Is Co6Fe2 a metal, semiconductor, or insulator?
Is Co6Fe2 thermodynamically stable?
What is the crystal structure of Co6Fe2?
What is the density of Co6Fe2?
How many polymorphs of Co6Fe2 are known?
What elements does Co6Fe2 contain?
Where does the data for Co6Fe2 come from?
How It Compares
As a member of the cobalt-iron intermetallic family, Co6Fe2 occupies a unique niche defined by its metastability. Unlike more common, highly stable equilibrium phases in this binary system, this compound highlights the structural complexity that can arise in transition metal alloys under specific processing conditions.
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).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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