LSAT Single Crystal

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Item #: B

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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.

Specifications

Crystal Structure	Cubic: a = 3.868 A
Growth Method	Czochralski
Density	6.74 g/cm³
Melting Point	1840°C
Chemical Formula	(LaAlO3)0.3 (Sr2AlTaO6)0.7 or ( La0.18Sr0.82)(Al0.59Ta0.41)O3
Thermal Expansion	10 x 10^-6 / °C
Dielectric Constant	22
Color and Appearance	Colorless to light brown based on annealing condition. No twin and domain visible.
Surface Roughness (Ra)	<= 5A