Lithium tantalate (LiTaO₃) is a ferroelectric ceramic compound with strong piezoelectric and electro-optic properties, widely used in precision electronic and photonic applications. It is the preferred material for surface acoustic wave (SAW) devices, integrated optics modulators, and frequency control components in telecommunications and signal processing. Engineers select LiTaO₃ over alternatives like lithium niobate when high-frequency stability, low insertion loss, and compact device footprints are critical—particularly in RF filters, delay lines, and high-speed optical communication systems.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 134.2 | GPa | — | ||
Poisson's Ratio(ν) | 0.2200 | - | — | ||
Shear Modulus(G) | 90.46 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 6.786 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)4 entries | 4.100 | eV | — | ||
| ↳ | 3.544 | eV | — | ||
| ↳ | 4.700 | eV | — | ||
| ↳ | 2.446 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 40.56 | - | — | ||
| ↳ | 22.90 range 5.029–40.77median of 2 measurements | - | — | ||
Magnetic Moment(μB)3 entries | 0.000 | μB | — | ||
| ↳ | 0.000108 | μB | — | ||
| ↳ | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 2.947 | C/m² | — | ||
| ↳ | 0.4933 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -404.8 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.1045 | eV/atom | — | ||
Formation Energy(ΔHf)4 entries | -2.950 | eV/atom | — | ||
| ↳ | -0.3200 | eV/atom | — | ||
| ↳ | -2.942 | eV/atom | — | ||
| ↳ | -2.822 | eV/atom | — |