Dy2TiO5
Dy2TiO5 is a stable, wide-band-gap insulating oxide composed of dysprosium, titanium, and oxygen that is frequently studied for its structural diversity.
About Dy2TiO5
Dy2TiO5 is a complex oxide consisting of dysprosium, titanium, and oxygen. As a thermodynamically stable compound residing on the convex hull, it exhibits significant structural robustness and is characterized as a wide-band-gap insulator. The material has been extensively documented across multiple databases, reflecting its importance in solid-state chemistry research. Its insulating nature and stability make it a subject of interest for specialized electronic and optical applications where high-performance dielectric properties are required. The compound's structural diversity, with numerous reported phases, highlights its versatility in materials science investigations.
Key Properties
Cross-validated computational properties for Dy2TiO5, 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 Dy2TiO5, 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. |
|---|---|---|---|---|---|
| Pnma (No. 62) | orthorhombic | 3.29 | 0.0000 | -9.119 | 7.03 |
| Pnma (No. 62) | orthorhombic | 3.19 | 0.0473 | -9.072 | 7.13 |
| Cmcm (No. 63) | orthorhombic | 3.05 | 0.0922 | -9.027 | 6.30 |
| C2/c (No. 15) | monoclinic | 2.91 | 0.1025 | -9.016 | 6.99 |
| P1 (No. 1) | triclinic | 2.52 | 0.1066 | -9.012 | 7.12 |
| P1 (No. 1) | triclinic | 2.90 | 0.1270 | -8.992 | 6.87 |
| P1 (No. 1) | triclinic | 2.78 | 0.1979 | -8.921 | 6.57 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 6.30 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 6.57 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 6.48 |
| C2/c (No. 15) | — | — | — | — | — |
Applications
Where Dy2TiO5 is used.
Frequently Asked Questions
Common questions about Dy2TiO5, answered from cross-validated data.
What is Dy2TiO5?
Dy2TiO5 is a stable, wide-band-gap insulating oxide composed of dysprosium, titanium, and oxygen that is frequently studied for its structural diversity.
What is Dy2TiO5 used for?
What is the band gap of Dy2TiO5?
Is Dy2TiO5 a metal, semiconductor, or insulator?
Is Dy2TiO5 thermodynamically stable?
What is the crystal structure of Dy2TiO5?
What is the density of Dy2TiO5?
How many polymorphs of Dy2TiO5 are known?
What elements does Dy2TiO5 contain?
Where does the data for Dy2TiO5 come from?
How It Compares
As a stable oxide within its class, Dy2TiO5 serves as a key representative for rare-earth titanate research. It occupies a distinct position in the landscape of insulating oxides, providing a foundation for understanding the interplay between heavy lanthanide cations and transition metal centers in complex lattice environments.
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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