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Problem : To provide a rare earth iron garnet sintered body with a high Faraday rotation coefficient (θf) and a Faraday element equipped with this sintered body. In addition, provide a method for producing the sintered body and Faraday element at a low cost. Solution : Composition represented by CexBiyR3-x-yFe5O12 (R is a rare earth element other than Ce, 0
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