HfTiO4
Hafnium titanate · Hafnium titanium oxide
Hafnium titanate is a ceramic material composed of hafnium, titanium, and oxygen. It is primarily utilized in advanced electronics and optical coatings due to its favorable dielectric properties and thermal stability.
Key Properties
Cross-validated computational properties for Hafnium titanate, 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 HfTiO4, 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. |
|---|---|---|---|---|---|
| P1 (No. 1) | triclinic | 2.87 | 0.0383 | -10.000 | 6.99 |
| P21212 (No. 18) | orthorhombic | 2.60 | 0.0512 | -9.987 | 7.02 |
| P1 (No. 1) | — | — | — | — | — |
| Cmmm (No. 65) | Orthorhombic | — | — | — | 6.96 |
| R-3m (No. 166) | Trigonal | — | — | — | 9.15 |
| P-1 (No. 2) | Triclinic | — | — | — | 6.95 |
| P1 (No. 1) | Triclinic | — | — | — | 8.27 |
| Cm (No. 8) | Monoclinic | — | — | — | 8.54 |
| R-3m (No. 166) | Trigonal | — | — | — | 8.38 |
| P21212 (No. 18) | — | — | — | — | — |
Synthesis Routes
Literature-extracted synthesis procedures targeting HfTiO4.
Applications
Where Hafnium titanate is used.
Frequently Asked Questions
Common questions about Hafnium titanate, answered from cross-validated data.
What is HfTiO4?
Hafnium titanate is a ceramic material composed of hafnium, titanium, and oxygen. It is primarily utilized in advanced electronics and optical coatings due to its favorable dielectric properties and thermal stability.
What is HfTiO4 used for?
What is the band gap of HfTiO4?
Is HfTiO4 a metal, semiconductor, or insulator?
Is HfTiO4 thermodynamically stable?
What is the crystal structure of HfTiO4?
What is the density of HfTiO4?
How many polymorphs of HfTiO4 are known?
How is HfTiO4 synthesized?
What elements does HfTiO4 contain?
Where does the data for HfTiO4 come from?
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
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