Ca2Fe7O11
This compound is a complex calcium iron oxide belonging to the family of oxygen-deficient perovskite-related structures. It is primarily studied in materials science research for its magnetic properties and its potential role in advanced ceramic applications.
Key Properties
Cross-validated computational properties for Ca2Fe7O11, 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.
Reported Structures
Lowest-energy structures reported for Ca2Fe7O11, 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. |
|---|---|---|---|---|---|
| C2/m (No. 12) | monoclinic | 0.27 | 0.0619 | -7.801 | 4.94 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.94 |
| C2/m (No. 12) | Monoclinic | — | — | — | 5.23 |
| C2/m (No. 12) | Monoclinic | — | — | — | 5.09 |
| C2/m (No. 12) | — | — | — | — | — |
Applications
Where Ca2Fe7O11 is used.
Frequently Asked Questions
Common questions about Ca2Fe7O11, answered from cross-validated data.
What is Ca2Fe7O11?
This compound is a complex calcium iron oxide belonging to the family of oxygen-deficient perovskite-related structures. It is primarily studied in materials science research for its magnetic properties and its potential role in advanced ceramic applications.
What is Ca2Fe7O11 used for?
What is the band gap of Ca2Fe7O11?
Is Ca2Fe7O11 a metal, semiconductor, or insulator?
Is Ca2Fe7O11 thermodynamically stable?
What is the crystal structure of Ca2Fe7O11?
What is the density of Ca2Fe7O11?
How many polymorphs of Ca2Fe7O11 are known?
What elements does Ca2Fe7O11 contain?
Where does the data for Ca2Fe7O11 come from?
Related Compounds
Other Oxide Oxygen-Evolution Catalysts in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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