Dy4H16K4O36P8
Dy4H16K4O36P8 is a metastable, insulating rare-earth phosphate compound used primarily in structural materials research.
About Dy4H16K4O36P8
Dy4H16K4O36P8 is a complex phosphate-based compound containing dysprosium, potassium, and hydrogen. As a wide-gap insulator, it exhibits electronic properties characteristic of highly stable dielectric materials, though it exists in a metastable state.
This material is primarily of interest in fundamental solid-state research due to its intricate structural arrangement. Its unique composition makes it a subject of study for understanding the behavior of rare-earth phosphates in complex crystalline environments.
Key Properties
Cross-validated computational properties for Dy4H16K4O36P8, 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 Dy4H16K4O36P8, 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. |
|---|---|---|---|---|---|
| P21/c (No. 14) | monoclinic | 4.66 | 0.0501 | -6.836 | 3.16 |
| P21/c (No. 14) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 0.83 |
Applications
Where Dy4H16K4O36P8 is used.
Frequently Asked Questions
Common questions about Dy4H16K4O36P8, answered from cross-validated data.
What is Dy4H16K4O36P8?
Dy4H16K4O36P8 is a metastable, insulating rare-earth phosphate compound used primarily in structural materials research.
What is Dy4H16K4O36P8 used for?
What is the band gap of Dy4H16K4O36P8?
Is Dy4H16K4O36P8 a metal, semiconductor, or insulator?
Is Dy4H16K4O36P8 thermodynamically stable?
What is the crystal structure of Dy4H16K4O36P8?
What is the density of Dy4H16K4O36P8?
How many polymorphs of Dy4H16K4O36P8 are known?
What elements does Dy4H16K4O36P8 contain?
Where does the data for Dy4H16K4O36P8 come from?
How It Compares
As a unique complex phosphate, this compound represents a specialized structural configuration within the broader family of rare-earth potassium phosphates, serving as a distinct example of how these elements can organize into metastable insulating frameworks.
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).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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