MAGNETIC GARNET MATERIAL, FARADAY ROTATOR, OPTICAL DEVICE, MANUFACTURING METHOD OF BISMUTH SUBSTITUTION TYPE RARE EARTH IRON GARNET SINGLE CRYSTAL FILM, AND SINGLE CRYSTAL FILM

摘要

PROBLEM TO BE SOLVED: To provide a magnetic garnet maintaining a magnetic hysteresis of a square Faraday rotation angle in the temperature range in which a Faraday rotator is used.

SOLUTION: The magnetic hysteresis of the Faraday rotation angle is maintained in a square shape in the temperature range in which the Faraday rotator is used by regulating the variation of a Pt concentration to be≤200%.

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