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LSAT substrate
Publish time 2024-06-04 00:00
LSAT(La,Sr)(Al,Ta)03 is a new twin-free perovskite crystal. LSAT has a perfect match with high-temperature superconductors and various oxide materials. LSAT has a low melting point and is grown by the pulling method, which is relatively low in cost. Therefore, it is expected to replace LaAlO3/SrTi03 as an epitaxial oxide thin film single crystal substrate and be widely used in giant magnetoelectric and superconducting devices.
| Parameters | |
| Growth method | Czochralski method |
| Crystal structure | Cubic |
| Lattice constant | a = 3.868 A |
| Melting point (℃) | 1840 |
| Density | 6.74 (g / cm 3) |
| Hardness | 6.5 (mohs) |
| Permittivity | 22 |
| Thermal expansion coefficient | 10 x 10 -6 |
| Color and Appearance | Colorless to light brown, without crystal-twin |
| Standard Size | 10x3mm, 10x5mm, 10x10mm, 15x15mm, 20x15mm, 20x20mm |
| Ф15mm, Ф20mm, Ф1"(25.4mm), Ф2"(50.8mm) | |
| Standard Thickness | 0.5mm, 1.0mm |
| Polishing | Single or double side polished |
| Crystal orientation | <100>, <110>, <111> ± 0.5 º |
| Ra: | ≤ 5Å (5μm × 5μm) |
| Package | 100 clean bag, 1000 clean room |
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