Lanthanum Aluminate

Lanthanum aluminate (LaAlO3), an inorganic compound often abbreviated as LAO, is an optically transparent ceramic oxide with a distorted perovskite structure.

Materials properties

Formula: LaAlO3
Crystal Growth
Growth Method: Czochralski
Growth Direction: (100)
Max. Diameter 3 inches
Crystallographic Properties
Crystal Structure: Rhombohedral @ 25°C:
a = 0.5357 nm
α = 60°6’Cubic > 435°C:
a = 0.379 nm
Twin Structure: Twins Parallel (100)
Color: Colorless to Tan to Brown
Physical Properties
Density: 6.51g cm-3
Melting Point: 2453K
Thermal Expansion: 9.2 x 10-6 K-1
Dielectric Constant: 24.5
Loss Tangent (@ 77K, 10GHZ): ~ 6 x 10-5