Tb3Al5O12
Terbium aluminum garnet · TAG
Tb3Al5O12 is a stable, wide-gap garnet oxide frequently utilized as a host material in optical and electronic applications.
About Terbium aluminum garnet
Terbium aluminum garnet is a highly stable, insulating oxide that crystallizes in a complex garnet structure. Its robust thermodynamic nature makes it a reliable candidate for high-temperature applications where structural integrity is paramount.
As a wide-gap material, it is primarily valued for its unique electronic and optical properties. Beyond its structural stability, it serves as a critical host material for rare-earth ions, enabling specialized performance in advanced technological devices.
Key Properties
Cross-validated computational properties for Terbium aluminum garnet, 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.
Reported Structures
Lowest-energy structures reported for Tb3Al5O12, 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. |
|---|---|---|---|---|---|
| Ia-3d (No. 230) | cubic | 4.56 | 0.0000 | -8.291 | 5.96 |
| Ia-3d (No. 230) | — | — | — | — | — |
Synthesis Routes
Literature-extracted synthesis procedures targeting Tb3Al5O12.
Applications
Where Terbium aluminum garnet is used.
Frequently Asked Questions
Common questions about Terbium aluminum garnet, answered from cross-validated data.
What is Tb3Al5O12?
Tb3Al5O12 is a stable, wide-gap garnet oxide frequently utilized as a host material in optical and electronic applications.
What is Tb3Al5O12 used for?
What is the band gap of Tb3Al5O12?
Is Tb3Al5O12 a metal, semiconductor, or insulator?
Is Tb3Al5O12 thermodynamically stable?
What is the crystal structure of Tb3Al5O12?
What is the density of Tb3Al5O12?
How many polymorphs of Tb3Al5O12 are known?
How is Tb3Al5O12 synthesized?
What elements does Tb3Al5O12 contain?
Where does the data for Tb3Al5O12 come from?
How It Compares
Within the spinel oxide catalysts class.
Unlike simple binary oxides such as CuO or ZnO, Tb3Al5O12 features a complex garnet framework that provides superior thermal and chemical resilience. While it shares the insulating character of Al2O3, its specific structural arrangement allows for distinct functional properties that differentiate it from more common spinel oxides like MgAl2O4.
Related Compounds
Other Spinel Oxide Catalysts in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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