MAGNETO-OPTICAL FARADAY ROTATION IN Bi4Ge3O12 CRYSTAL
Bi4Ge3O12晶体的磁光法拉第旋转

The dispersion relation of magneto-optic Faraday rotation in crystal Bi4Ge3O12 was measured in the visible region. The variation of Faraday rotation with temperature was also measured at 633 nm between room temperature and liquid nitrogen temperature. Large Faraday rotation together with high transparency in wide wave length region makes it a valuable magneto-optic material as well. The important role of Bi ions in diamagnetic crystal in magneto-optic rotation was briefly discussed.