LiTaO3
semiconductor· LiTaO3
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.
SAW filters and resonatorsElectro-optic modulatorsRF/microwave signal processingTelecommunications componentsFrequency control devicesIntegrated photonics
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 19,459.7 | ksi | — | ||
Poisson's Ratio(ν) | 0.2200 | - | — | ||
Shear Modulus(G) | 13,120.1 | ksi | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2452 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| 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 | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| 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 | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.