Lithium Tantalate

Properties and Data

Physical Properties

Composition

LiTaO₃

Lithium Tantalate

Density

7.45 - 7.46 g/cm³

Mohs Hardness

5.75 - 6

Crystal System

Trigonal

Optical Properties

Type

Uniaxial (?)

Refractive Index

n_ω = 2.176 - 2.18
n_ε = 2.18 - 2.18

Dispersion Factor

0.075

Birefringence

Additional Properties

Inherent

Piezoelectric
Pyroelectric
Diamagnetic

Additional Information

Otherwise known by LT

Lithium Tantalate is related to Lithium Niobate in many ways. The two materials can often be used in similar applications, however they do have differences in properties. TODO: Finish Article

Variants and Types

Photo Source: https://www.smm.co.jp/en/business/material/products/lithium/

(Undoped / Generic)

(Undoped)

Color: Colorless to Beige

Photo Source: https://djeva.com/collections/green-lithium-tantalate

(Needs Research)

Color: Mint Green, Lime

Cause: Unknown Dopant

Production and Synthesis

Czochralski Method

Involves pulling a crystal (boule) upward from a molten solution. Produces some of the purest crystals but requires a cleanroom environment.

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