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ANHUI CRYSTRO CRYSTAL MATERIALS Co., Ltd. |
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High Temperature Superconducting Single Crystal Substrate Laalo3
LaAlO3 is a high temperature superconducting single crystal substrate. It is a good substrate material for epitaxial growth of high temperature superconducting thin films and giant magnetic thin films. Its dielectric properties are suitable for low loss microwave and dielectric resonance applications.
Crystro has a professional team with more than 15 years of production experience,we invests heavily in crystal R&D every year to improve products performance and develope new crystals.
LaAlO3 single crystal provides a good lattice match to many materials with perovskite structure. It is an excellent substrate for epitaxial growth of high Tc superconductors, magnetic and ferro-electric thin films. The dielectric properties of LaAlO3 crystal are well suitable for low loss microwave and dielectric resonance applications.
Main Properties:
| Typical Physical Properties | |
| Crystal Structure | Cubic a=3.79 Angstroms |
| Growth Method | Czochralski |
| Density | 6.52 g/cm3 |
| Melt Point | 2080 oC |
| Thermal expansion | 10 (x10-6/ oC) |
| Dielectric Constant | ~ 25 |
| Loss Tangent at 10 GHz | ~3x10-4 @ 300K , ~0.6 x10-4 @77K |
| Color and Appearance | Transparent to Brown based on annealing condition. Visible twins on polished substrate |
| Chemical Stability | Insoluble in mineral acids at 25 oC and soluble in H3PO3 at> 150 oC |
Applications:
High Temperature Superconducting thin films
Giant magnetic thin films
Electronic devices,
high temperature fuel cell
Main Advantages:
Small dielectric constant; low dielectric loss;good lattice matching;small thermal expansion coefficient;good chemical stability;wide energy gap;large specific surface area;certain activity; good thermal stability
