CaMg14O16Zn
CaMg14O16Zn is a metastable, insulating quaternary oxide composed of calcium, magnesium, oxygen, and zinc.
About CaMg14O16Zn
CaMg14O16Zn is a complex oxide composed of calcium, magnesium, oxygen, and zinc. As a wide-band-gap insulator, it exhibits electronic characteristics typical of stable dielectric materials, though it exists in a metastable state that makes its synthesis and structural characterization a subject of ongoing interest in materials science. The compound is recognized for its structural diversity, with multiple reported configurations across various databases. Its unique elemental combination suggests potential utility in specialized ceramic applications where insulating properties and specific structural frameworks are required.
Key Properties
Cross-validated computational properties for CaMg14O16Zn, 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 CaMg14O16Zn, 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. |
|---|---|---|---|---|---|
| P4/mmm (No. 123) | tetragonal | 3.52 | 0.0397 | -6.227 | 3.64 |
| Pmmm (No. 47) | orthorhombic | 3.37 | 0.0401 | -6.226 | 3.64 |
| — | — | — | — | — | 3.46 |
| P4/mmm (No. 123) | — | — | — | — | — |
| — | — | — | — | — | 2.56 |
Applications
Where CaMg14O16Zn is used.
Frequently Asked Questions
Common questions about CaMg14O16Zn, answered from cross-validated data.
What is CaMg14O16Zn?
CaMg14O16Zn is a metastable, insulating quaternary oxide composed of calcium, magnesium, oxygen, and zinc.
What is CaMg14O16Zn used for?
What is the band gap of CaMg14O16Zn?
Is CaMg14O16Zn a metal, semiconductor, or insulator?
Is CaMg14O16Zn thermodynamically stable?
What is the crystal structure of CaMg14O16Zn?
What is the density of CaMg14O16Zn?
How many polymorphs of CaMg14O16Zn are known?
What elements does CaMg14O16Zn contain?
Where does the data for CaMg14O16Zn come from?
How It Compares
As a unique quaternary oxide, CaMg14O16Zn represents a niche structural arrangement within the broader landscape of complex alkaline earth and transition metal oxides, serving as a distinct example of metastable phase formation in multi-component systems.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
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