Basic Material Properties (LT)

Commodity: Lithium Tantalate (LiTaO3), Single Crystal, Single Domain
Growth Type: Czochralski (CZ)
Purity: 99.99% (LT/SAW grade)
Composition: Congruent
Compositional Uniformity (LiO2): 47.88mol% ± 0.04mol%
Lattice Parameters (hexagonal): a=5.154Å, c=13.781Å
Density: 7.4564g/cm³
Hardness (Mohs): 5.5
Melting Point: 1650° C
Curie Temperature: 601°C ~ 609°C (as per customer's request) +/- 2°C

Specific Material Properties

LT X-112
El.-Mech. Coupling Coefficient (k²): 0.75%
Surface Wave Velocity: 3290m/s
Group Delay Time Temp. Coefficient: 18ppm/°C

LT Y-36
El.-Mech. Coupling Coefficient (k²): 5.0%
Surface Wave Velocity: 4160m/s
Group Delay Time Temp. Coefficient: 28 ~ 32ppm/°C

LT Y-42
El.-Mech. Coupling Coefficient (k²): 7.6%
Surface Wave Velocity: 4022m/s
Group Delay Time Temp. Coefficient: 40ppm/°C