LiTaO3
Lithium tantalate · LTO
Lithium tantalate is a stable, insulating ferroelectric material widely used in acoustic and optical signal processing technologies.

About Lithium tantalate
Lithium tantalate is a thermodynamically stable oxide that serves as a cornerstone material in modern electronics. As a wide-band-gap insulator, it is prized for its exceptional piezoelectric and pyroelectric properties which allow it to convert mechanical stress into electrical signals and vice versa.
Its structural versatility is evidenced by the numerous reported configurations found in material databases. This robustness makes it an essential component for high-performance signal processing, telecommunications, and advanced optical components where reliability and stability are paramount.
Key Properties
Cross-validated computational properties for Lithium tantalate, 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.
Synthesis Routes
Literature-extracted synthesis procedures targeting LiTaO3.
Applications
Where Lithium tantalate is used.
Patent Landscape
1 patent reference LiTaO3 or close compositional variants.
| Patent | Title | Assignee | Granted |
|---|---|---|---|
| 4196963 | Method for eliminating Li.sub.2 O out-diffusion in LiNbO.sub.3 and LiTaO.sub.3 waveguide structures | — | — |
Frequently Asked Questions
Common questions about Lithium tantalate, answered from cross-validated data.
What is LiTaO3?
Lithium tantalate is a stable, insulating ferroelectric material widely used in acoustic and optical signal processing technologies.
What is LiTaO3 used for?
What is the band gap of LiTaO3?
Is LiTaO3 a metal, semiconductor, or insulator?
Is LiTaO3 thermodynamically stable?
How many polymorphs of LiTaO3 are known?
How is LiTaO3 synthesized?
What elements does LiTaO3 contain?
Where does the data for LiTaO3 come from?
How It Compares
Within the lithium oxides class.
Unlike the battery-focused lithium oxides such as LiCoO2 or LiMn2O4, which are primarily valued for their electrochemical activity and ion-transport capabilities, lithium tantalate is defined by its dielectric and ferroelectric characteristics. While its siblings are optimized for energy storage and redox stability, lithium tantalate is engineered for its insulating nature and ability to manipulate electromagnetic waves.
Related Compounds
Other Lithium Oxides in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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