Description
LSAT (LaAlO3)0.3 (Sr2AlTaO6)0.7 is a newly developing crystal with peroviskite structure and twin-free. LSAT has excellent lattice match with high Tc superconductors and many oxide materials. LSAT has lower melting point and can be grown by CZ technology at lower cost, therefore, it is expected to replace LaAlO3 and SrTiO3 as a common single crystal substrate for epitaxial oxide thin films for gain magnetic ferro-electronic and superconductive devices
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Substrate Specifications:
- Size: 10 x 10 x 0.5 mm +/-0.05 mm
- Orientation: (100) with 2 degree miscut along (100)
- Surface Roughness: CMP polished with min. sub-surface damage , and Ra < 10 A
- Package: Packing in 1000 class clean room with 100 grade clean plastic bag
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Typical Physical Properties |
| Chemical Formula | ( LaAlO3)0.3 (Sr2AlTaO6)0.7 or ( La0.18Sr0.82)(Al0.59Ta0.41)O3 |
| Crystal Structure | cubic: a = 3.868 Å |
| Growth Method | Czochralski |
| Density | 6.74 g/cm3 |
| Melt Point | 1840 oC |
| Thermal expansion | 10 (x10-6/ oC) |
| Dielectric Constant | ~ 22 |
| Color and Appearance | Colorless to light brown based on annealing condition. No twin and domain visible |
Standard Products |
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| Epi -polished substrates<100>ori. ± 0.5o1or 2 sides polishedRa < 8 Å | 2" dia x 0.5 mm 10 x 10 x 0.5mm Special size and orientation is available upon request 5 x 5 x 0.5 mm |
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