Lithium tantalate (Li₂TaO₃) is a ferroelectric ceramic compound that combines lithium and tantalum oxides, notable for its strong piezoelectric and electro-optic properties. It is primarily used in rf and microwave signal processing devices, optical modulators, and acoustic wave applications where its ability to convert between electrical and mechanical/optical signals is critical. Compared to alternatives like lithium niobate, lithium tantalate offers distinct advantages in specific frequency ranges and temperature stability, making it the preferred choice for high-frequency telecommunications filters, surface acoustic wave (SAW) devices, and integrated photonic modulators in demanding aerospace and defense systems.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 7.257 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | DFT · OptB88vdW | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.06400 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -2.619 | eV/atom | DFT · OptB88vdW |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data