Gd4O16P4
Gadolinium orthophosphate · Gadolinium phosphate
Gadolinium orthophosphate is a stable, insulating inorganic compound used as a host material for optical and ceramic applications.
About Gadolinium orthophosphate
Gadolinium orthophosphate is a robust inorganic compound characterized by its insulating electronic nature and high thermodynamic stability. As a member of the rare-earth phosphate family, it maintains a stable structure that is highly valued for its chemical durability and structural integrity under diverse conditions.
Its unique electronic properties make it a subject of interest for specialized material science research. The compound is primarily utilized in sectors requiring stable host matrices for luminescent materials and advanced ceramics, where its structural reliability ensures consistent performance.
Key Properties
Cross-validated computational properties for Gadolinium orthophosphate, 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 Gd4O16P4, 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 | 3.29 | 0.0000 | -10.004 | 5.64 |
| P21/c (No. 14) | monoclinic | 2.90 | 0.0270 | -9.977 | 6.03 |
| No. 0 | unknown | — | — | — | 1.53 |
| No. 0 | unknown | — | — | — | 1.55 |
| No. 0 | unknown | — | — | — | 1.50 |
| P-1 (No. 2) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 1.57 |
| No. 0 | unknown | — | — | — | 1.50 |
| P21/c (No. 14) | — | — | — | — | — |
Applications
Where Gadolinium orthophosphate is used.
Frequently Asked Questions
Common questions about Gadolinium orthophosphate, answered from cross-validated data.
What is Gd4O16P4?
Gadolinium orthophosphate is a stable, insulating inorganic compound used as a host material for optical and ceramic applications.
What is Gd4O16P4 used for?
What is the band gap of Gd4O16P4?
Is Gd4O16P4 a metal, semiconductor, or insulator?
Is Gd4O16P4 thermodynamically stable?
What is the crystal structure of Gd4O16P4?
What is the density of Gd4O16P4?
How many polymorphs of Gd4O16P4 are known?
What elements does Gd4O16P4 contain?
Where does the data for Gd4O16P4 come from?
How It Compares
As a stable rare-earth phosphate, this compound serves as a foundational example of how lanthanide-based oxo-anion structures maintain thermodynamic equilibrium. It represents a critical benchmark for insulating phosphate frameworks, providing a reliable structural template for developing functional materials within the broader class of rare-earth orthophosphates.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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