Cr2Er2O12Te2
Cr2Er2O12Te2 is a stable, semiconducting quaternary oxide composed of chromium, erbium, oxygen, and tellurium.
About Cr2Er2O12Te2
Cr2Er2O12Te2 is a complex oxide featuring chromium, erbium, and tellurium. As a thermodynamically stable phase located on the convex hull, it represents a robust crystalline arrangement that maintains structural integrity under standard conditions.
This material exhibits semiconducting electronic behavior, making it an interesting candidate for specialized electronic or optoelectronic applications. Its unique composition allows for complex interactions between the transition metal and lanthanide centers, which are of significant interest for fundamental materials science studies.
Key Properties
Cross-validated computational properties for Cr2Er2O12Te2, 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 Cr2Er2O12Te2, 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. |
|---|---|---|---|---|---|
| P-31c (No. 163) | trigonal | 2.65 | 0.0000 | -7.776 | 6.50 |
| P-31c (No. 163) | trigonal | 1.50 | 0.2404 | -7.536 | 6.79 |
| — | — | — | — | — | 6.79 |
| — | — | — | — | — | 6.79 |
| P-31c (No. 163) | — | — | — | — | — |
Applications
Where Cr2Er2O12Te2 is used.
Frequently Asked Questions
Common questions about Cr2Er2O12Te2, answered from cross-validated data.
What is Cr2Er2O12Te2?
Cr2Er2O12Te2 is a stable, semiconducting quaternary oxide composed of chromium, erbium, oxygen, and tellurium.
What is Cr2Er2O12Te2 used for?
What is the band gap of Cr2Er2O12Te2?
Is Cr2Er2O12Te2 a metal, semiconductor, or insulator?
Is Cr2Er2O12Te2 thermodynamically stable?
What is the crystal structure of Cr2Er2O12Te2?
What is the density of Cr2Er2O12Te2?
How many polymorphs of Cr2Er2O12Te2 are known?
What elements does Cr2Er2O12Te2 contain?
Where does the data for Cr2Er2O12Te2 come from?
How It Compares
As a unique quaternary oxide, Cr2Er2O12Te2 occupies a distinct position within the landscape of tellurium-based ceramics. While many similar oxides are synthesized under extreme conditions, this compound is notable for its inherent thermodynamic stability, which distinguishes it from metastable phases that require precise kinetic control to isolate.
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).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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