SrTiO3 monocrystal substrate
SrTiO3 (Strontium Titanate – STO ) single crystal substrates are characterized by their high dielectric constant, excellent lattice matching to many materials with perovskite structure, and optical transparency. These properties make them suitable for epitaxial growth of various materials, including oxide thin films and high-temperature superconductors.
For inquiry, please give us the following information:
- Size (Length/Width/ Thickness)
- Orientation
- Polishing Side (SSP or DSP )
- Quantity
Typical properties
| Crystal Structure | Cubic a=3.905Å |
| Growth Method | Verneuil |
| Density | 5.175 g/cm3 |
| Melt Point | 2080 °C |
| Hardness | 6 (Mohn) |
| Thermal Expansion | 10.4 x (10-6/°C) |
| Dielectric Constant | ～300 |
| Loss Tangent at 10 GHz | ～5 x 10-4@300K , ～3 x 10-4@77K |
| Color and Appearance | Transparent (can be slightly brown depending on annealing condition), No twins |
| Chemical Stability | Insoluble in water |
Size & Orientation &Surface
| Size | Dia.30 mm (LxW) 20 x 20, 15 x 15, 10 x 10, 10 x 5, 5 x 5 mm Customized size is available upon your request |
| Thickness | 0.5 mm |
| Orientation | <100>±0.5º、<110>±0.5º、<111>±0.5º |
| Polishing | SSP or DSP |
| Surface roughness | Surface roughness(Ra):<=5A |
