CCaO5Te
CCaO5Te has a DFT band gap of 3.85 eV across 2 reported structures in 1 space group; its reference structure is orthorhombic (Pbca (No. 61)). Cross-validated across 2 computational databases.
Key Properties
Cross-validated computational properties for CCaO5Te, 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of CCaO5Te. Tight agreement means computed properties can be trusted without re-running calculations.
Only 1 independent DFT source (materials_project) reports a hull energy for CCaO5Te, so cross-source agreement can't be assessed yet.
Reported Structures
Lowest-energy structures reported for CCaO5Te, 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. |
|---|---|---|---|---|---|
| Pbca (No. 61) | orthorhombic | 3.85 | 0.0002 | -7.130 | 4.02 |
| Pbca (No. 61) | orthorhombic | — | — | — | 4.17 |
Frequently Asked Questions
Common questions about CCaO5Te, answered from cross-validated data.
What is the band gap of CCaO5Te?
CCaO5Te has a DFT-computed band gap of 3.85 eV across 2 reported structures. Standard DFT underestimates band gaps, so the measured gap is typically larger.
Is CCaO5Te a metal, semiconductor, or insulator?
Is CCaO5Te thermodynamically stable?
What is the crystal structure of CCaO5Te?
What is the density of CCaO5Te?
How many polymorphs of CCaO5Te are known?
What elements does CCaO5Te contain?
Where does the data for CCaO5Te come from?
Data sources & attribution
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- cod — Data from the Crystallography Open Database (crystallography.net/cod/). Cite: Grazulis et al., J. Appl. Cryst. 42, 726 (2009). (CC0-1.0)
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