KT Potassium Tantalate

KT Potassium Talate (KTaO3) Single crystal has a stable cubic structure, and can be used to make laser modulator, digital deflector and semiconductor devices. Due to the absence of phase transition in the temperature range from absolute zero to its melting point (1645K), and the good matching of its cell parameters with yttrium barium copper oxide superconductors, this crystal has the potential to be used as a substrate material for superconducting thin films


Product Description

KT Potassium Talate (KTaO3) Single crystal has a stable cubic structure, and can be used to make laser modulator, digital deflector and semiconductor devices. Due to the absence of phase transition in the temperature range from absolute zero to its melting point (1645K), and the good matching of its cell parameters with yttrium barium copper oxide superconductors, this crystal has the potential to be used as a substrate material for superconducting thin films


Product Parameters

Molecular formulaKTaO3(KT)
Point groupm3m
Cell parameters0.3984nm
Melting point1352.2℃
Density7.025 g/cm3
Mohs hardness6
Growing directionsCzochralski method
Refractive index2.226@633nm,   2.152@1539nm
Thermal expansion coefficient due to heat4.027*10-6/K)
Specific heat (room temperature JK-1g-1)0.378
Transparent    band (nm)380~4000
Conventional crystal orientation<100>;<110>;<111>
Standard size20x20x0.5mm;10x10x0.5mm,5x5x0.5mm, or   processed according to customer requirements
PolishingSingle throw, double throw, and Ra <1nm


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