Description
LSAT (LaAlO3)0.3 (Sr2AlTaO6)0.7 is a newly developing crystal with a perovskite structure and is 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 a 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
Substrate Specifications:
- Size: 2" Dia. +/-0.5 mm x 0.5 mm +/-0.05 mm
- Orientation: <110> +/-0.5 Deg
- Surface Roughness: CMP polished with min. sub-surface damage, and Ra < 10 A
- Package: Packing in 1000 class clean room with a 100-grade clean plastic bag
- Click here to view SDS
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Typical Physical Properties |
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Chemical Formula |
( LaAlO3)0.3 (Sr2AlTaO6)0.7 or ( La0.18Sr0.82)(Al0.59Ta0.41)O3 |
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Crystal Structure |
cubic: a = 3.868 Å |
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Growth Method |
Czochralski |
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Density |
6.74 g/cm3 |
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Melt Point |
1840 oC |
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Thermal expansion |
10 (x10-6/ oC) |
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Dielectric Constant |
~ 22 |
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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. ± 0.5o 1or 2 sides polished Ra < 8 Å |
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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