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 Yong Hee
LSAT substrate
    Publish time 2024-06-04 00:00    
LSAT substrate

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.

Growth methodCzochralski method
Crystal structureCubic
Lattice constanta = 3.868 A
Melting point (℃)1840
Density6.74 (g / cm 3)
Hardness6.5 (mohs)
Thermal expansion coefficient10 x 10 -6
Color and AppearanceColorless to light brown, without crystal-twin
Standard Size10x3mm, 10x5mm, 10x10mm, 15x15mm, 20x15mm, 20x20mm

Ф15mm, Ф20mm, Ф1"(25.4mm), Ф2"(50.8mm)
Standard Thickness0.5mm, 1.0mm
PolishingSingle or double side polished
Crystal orientation<100>, <110>, <111> ± 0.5 º
Ra:≤ 5Å (5μm × 5μm)

100 clean bag, 1000 clean room

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