Bi-SUBSTITUTED RARE EARTH IRON GARNET SINGLE CRYSTAL, METHOD FOR PRODUCING THE SAME AND OPTICAL DEV

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PROBLEM TO BE SOLVED : To provide a garnet single crystal that is lead-free despite of using a platinum crucible for avoiding deleterious effects of lead on the environment, shows no quality deterioration, shows high mass productivity and is capable of achieving an IL of ≤0.10 dB. SOLUTION : The Bi-substituted rare earth iron garnet single crystal is lead-free, contains ≥0.91-≤2.68 atppm Pt and further contains ≥2.54-≤4.0 atppm of at least one element chosen from Mn or a group 2 element. COPYRIGHT : (C)2011, JPO&INPIT