Neodymium Gallat Substrate
| Materials properties | ||
|---|---|---|
| Structure formula: | NdGaO3 | |
| State: | monocrystalline | |
| Crystal structure: | orthorhombic Perowskite cell | a = 5.426 Å b = 5.496 Å c = 7.707 Åa,c = 3.863 Å b = 3.854 Å |
| Phase transition: | No (RT to 1300°C) | |
| Density: | 7.57 g/cm3 | |
| Melting point: | 1600°C | |
| Coefficient of expansion: | 11 * 10-6/°C | |
| Substrate properties | ||
|---|---|---|
| Production method: | Czochralski grown | |
| Orientation: | (110) | |
| Orientation accuracy: | £ 0.5° | |
| Standard size: | 10mm x 10mm x thickness 1mm or 0.5mm | |
| Tolerance of length: | ± 0.10mm | |
| Tolerance of thickness: | ± 0.05mm | |
| Parallelness: | £ 0.02 | |
| Polishing: | standard: one side | |
| Flatness: | ¼ | |
| Roughness of surface: | Rmax £ 3nm (average Ra=1nm) | |
| Scratches: | None | |
| Surface quality: | with light microscope without defects | |