Sim. Verneuill grown

Materials properties
Structure formula: LaAlO3
State: monocrystalline
Crystal structure: rhombohedrial


a = 5.377 Å
a = 60.13°a = 3.821 Å
Phase transition: > 500° C
Density: 6.51 g/cm3
Melting point: 2180°C
Coefficient of expansion: 10 * 10-6/°C
Dielectrical constant (εr): 20-25


Substrate properties
Production method: sim. Verneuill grown (with minimum twins)
Orientation: (100)
Orientation accuracy: £ 0.5°
Standard size: 10mm x 10mm x thickness 1mm or 0.5mm
Tolerance of length: ± 0.10mm (typical better ± 0.05mm)
>Tolerance of thickness: ± 0.05mm
Parallelness: £ 0.02mm
Polishing: standard: one side
Flatness: ½
Roughness of surface: Rmax £ 15nm (average Ra = 3nm)
Scratches: none
Surface quality: with light microscope without defects