O8P2Tm2
Thulium phosphate · TmPO4
Thulium phosphate is a crystalline inorganic compound that serves as a host material for rare-earth doping. It is primarily utilized in advanced optical research and the development of solid-state laser technologies.

Key Properties
Cross-validated computational properties for Thulium phosphate, 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 O8P2Tm2, 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. |
|---|---|---|---|---|---|
| I41/amd (No. 141) | tetragonal | 5.72 | 0.0000 | -8.468 | 6.39 |
| I41/amd (No. 141) | — | — | — | — | — |
| — | — | — | — | — | 6.18 |
Applications
Where Thulium phosphate is used.
Frequently Asked Questions
Common questions about Thulium phosphate, answered from cross-validated data.
What is O8P2Tm2?
Thulium phosphate is a crystalline inorganic compound that serves as a host material for rare-earth doping. It is primarily utilized in advanced optical research and the development of solid-state laser technologies.
What is O8P2Tm2 used for?
What is the band gap of O8P2Tm2?
Is O8P2Tm2 a metal, semiconductor, or insulator?
Is O8P2Tm2 thermodynamically stable?
What is the crystal structure of O8P2Tm2?
What is the density of O8P2Tm2?
How many polymorphs of O8P2Tm2 are known?
What elements does O8P2Tm2 contain?
Where does the data for O8P2Tm2 come from?
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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