Strontium titanate (SrTiO₃) is a ceramic perovskite compound that exhibits semiconductor properties and is valued for its high dielectric constant, structural stability, and optical transparency. It is widely used in multilayer capacitors, tunable microwave devices, and photocatalytic applications, where its ability to be engineered with dopants and defects makes it attractive for energy conversion and environmental remediation. The material is also extensively studied in thin-film form for oxide electronics, ferroelectric devices, and as a substrate for growing complex oxide heterostructures—making it a bridge between classical ceramics engineering and next-generation functional materials research.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 172.7 | GPa | DFT | ||
| ↳ | 178.4 | GPa | DFT · OptB88vdW | ||
| ↳ | 172.7 | GPa | DFT · PBE | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | DFT · PBE | ||
Elastic Anisotropy(AU) | 0.00000514 | - | DFT · PBE | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | DFT · PBE | ||
Poisson's Ratio(ν)2 entries | 0.2700 | - | DFT · OptB88vdW | ||
| ↳ | 0.2381 | - | DFT · PBE | ||
Shear Modulus(G)3 entries | 109.6 | GPa | DFT | ||
| ↳ | 96.91 | GPa | DFT · OptB88vdW | ||
| ↳ | 109.6 | GPa | DFT · PBE |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 5.022 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.906 – 4.100 | eV | 5 entriesClick to expand | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 9.963 | - | DFT · OptB88vdW | ||
| ↳ | 7.800 | - | DFT · PBE | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 6.409 | - | DFT · OptB88vdW | ||
| ↳ | 5.447 | - | DFT · TBmBJ | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | DFT · PBE | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | DFT · PBE | ||
Electron Effective Mass(m*e) | 0.6833 | me | DFT · OptB88vdW · 27°C | ||
Hole Effective Mass(m*h) | 2.230 | me | DFT · OptB88vdW · 27°C | ||
Magnetic Moment(μB)3 entries | 0.000 | μB | DFT | ||
| ↳ | 0.0000174 | μB | DFT | ||
| ↳ | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | DFT · OptB88vdW | ||
Thermoelectric Power Factor(PF)2 entries | 0.00384 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.00232 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -317.5 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 421.1 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 15.18 | % | DFT · TBmBJ | ||
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf)4 entries | -3.354 | eV/atom | DFT | ||
| ↳ | -0.2400 | eV/atom | DFT | ||
| ↳ | -3.419 | eV/atom | DFT · OptB88vdW | ||
| ↳ | -3.463 | eV/atom | Measured |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data