Lu3AlO6
Lutetium aluminum oxide · LuAG
Lutetium aluminum oxide is a synthetic crystalline material often used as a host lattice for various dopants. It is highly valued for its excellent optical properties and structural stability in demanding environments.

Overview
Key Properties
Cross-validated computational properties for Lutetium aluminum oxide, 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.
4.58 eV
Range across DFT structures
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.
0.027 eV/atom
Best (lowest) across sources
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.
Metastable
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
9
3 databases, 2 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for Lu3AlO6, 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. |
|---|---|---|---|---|---|
| R-3 (No. 148) | trigonal | 4.58 | 0.0275 | -8.637 | 8.63 |
| Cmc21 (No. 36) | orthorhombic | 4.55 | 0.0322 | -8.632 | 8.67 |
| R-3 (No. 148) | Trigonal | — | — | — | 8.63 |
| R-3 (No. 148) | Trigonal | — | — | — | 9.18 |
| Cmc21 (No. 36) | — | — | — | — | — |
| Cmc21 (No. 36) | Orthorhombic | — | — | — | 9.24 |
| R-3 (No. 148) | Trigonal | — | — | — | 8.89 |
| Cmc21 (No. 36) | Orthorhombic | — | — | — | 8.67 |
| Cmc21 (No. 36) | Orthorhombic | — | — | — | 8.93 |
Uses
Applications
Where Lutetium aluminum oxide is used.
Scintillators for radiation detectionSolid-state laser hostsPhosphor materials for lightingHigh-temperature ceramic components
Reference
Frequently Asked Questions
Common questions about Lutetium aluminum oxide, answered from cross-validated data.
What is Lu3AlO6?
Lutetium aluminum oxide is a synthetic crystalline material often used as a host lattice for various dopants. It is highly valued for its excellent optical properties and structural stability in demanding environments.
What is Lu3AlO6 used for?
Lutetium aluminum oxide (Lu3AlO6) is used in scintillators for radiation detection, solid-state laser hosts, phosphor materials for lighting, and high-temperature ceramic components.
What is the band gap of Lu3AlO6?
Lutetium aluminum oxide (Lu3AlO6) has a DFT-computed band gap of 4.58 eV across 9 reported structures.
Is Lu3AlO6 a metal, semiconductor, or insulator?
With a wide band gap up to 4.58 eV it is an insulator / wide-band-gap material.
Is Lu3AlO6 thermodynamically stable?
Lutetium aluminum oxide (Lu3AlO6) has a lowest energy above hull of 0.027 eV/atom (metastable).
What is the crystal structure of Lu3AlO6?
The lowest-energy reported polymorph of Lutetium aluminum oxide (Lu3AlO6) is trigonal symmetry, space group R-3 (No. 148).
What is the density of Lu3AlO6?
The computed density of the ground-state structure of Lutetium aluminum oxide (Lu3AlO6) is 8.63 g/cm³.
How many polymorphs of Lu3AlO6 are known?
9 structures of Lu3AlO6 are reported across 3 databases, spanning 2 distinct space groups.
What elements does Lu3AlO6 contain?
Lutetium aluminum oxide (Lu3AlO6) contains Al, Lu, and O (3 elements).
Where does the data for Lu3AlO6 come from?
Lu3AlO6 data is cross-referenced from materials_project, mpaloe, jarvis.
Explore
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).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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