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Abstract

The paramagnetic garnet-type transparent ceramic a sintered object of a composite oxide represented by formula (1), (Tb_1−x−yY_xSc_y)₃(Al_1−zSc_z)₅O₁₂ (0.05≤x<0.4, 0≤y<0.004, 0.6≤1−x−y<0.95, 0≤z<0.004, and 0.0012 as a sintering aid in an amount larger than 0 mass % but not larger than 0.1 mass %, and having an average sinter-grain diameter of 5 μm or larger. The transparent ceramic has a total light transmittance of 84.0% or greater and a forward scatter of 0.5% or less at an optical path length of 25 mm and a wavelength of 1,064 nm and has a total light transmittance of 84.0% or greater and a forward scatter of 0.5% or less at an optical path length of 25 mm and a wavelength of 1,300 nm. In the formula (1).

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First Claim