Lanthanum Aluminate (LaAlO3) Single Crystal Substrate
| Product | Lanthanum Aluminate (LaAlO3) Single Crystal Substrate |
| Part Number | SB57 |
| Density | 6.52 g/cm3 |
| Synonyms | Single Crystal LaAlO3 Substrate , LaAlO3 Substrate |
Lanthanum aluminate (LaAlO3) single crystal is the most important industrial, large-scale high-temperature superconducting film substrate single crystal material. By using the Czochralski method, single crystals and substrates with a diameter of 2 inches and larger can be obtained. It has good match with YBaCuO and other high temperature superconductor materials and lattice, low dielectric constant and small microwave loss, so it is suitable for making high temperature superconductor microwave electronic devices (such as high temperature superconductor microwave filter in remote communication). It has great practical and potential application prospects. Get a Quote Now! For other semiconductor materials, please check our Semiconductor Materials catalog page.
Typical application:
Lanthanum aluminate single crystal is a good substrate material for epitaxial growth of high temperature superconducting thin films and giant magnetic thin films because of its good lattice matching for a variety of perovskite structure materials. Its dielectric properties are suitable for low loss microwave and dielectric resonance applications.
Typical Specification
| Crystal structure | M6 (normal temperature) | Cubic (>435°C) |
| Unit cell constant | a=5.357 Å, c=13.22 Å | a=3.821 Å |
| Dielectric constants | ε=21 | |
| Secant loss（10 GHz) | ～3×10-4 @300 k,～0.6×10-4 @77 k | |
| Characteristics | For microwave electron device | |
| Growth method | Czochralski method | |
| Size | Rectangle: 10 x 3, 10 x 5, 10 x 10, 15 x 15, 20 x 15, 20 x 20 mm | |
| Round: Diameter 1’’, 2’’, 2.6’’ | ||
| Thickness | 0.5 mm, 1.0 mm | |
| Polishing | Single or double | |
| Crystal Orientation | <100>, <110>, <111> | |
| redirection precision | ±0.5° | |
| Redirection the edge: | 2°（special in 1°) | |
| Angle of crystalline | Special size and orientation are available upon request | |
| Surface Roughness | Ra ≤5 Å (5 µm × 5 µm) | |
Order Information
Inquiries and orders should include the following information:
- Quantity
- Dimensions
- Crystal orientation
- Polishing
Packing and Storage
Standard Packing: class 100 clean sealed bags. Special package is available on request.
Physical Properties –Lanthanum Aluminate (LaAlO3) Single Crystal Substrate
| Form | Solid |
| Hardness | 6-6.5 (mohs) |
| Melting Point | 2080°C |
| Thermal Expansion (/°C) | 9.4×10-6 |
| Chemical Stability | Insoluble in water |
| Color and Appearance | from brown to brownish |
| Chemical Stability | Not dissoluble in minerals at room temperature, soluble in H3PO4 at temperature greater than 150°C |
