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在可见光范围测量了Bi4Ge3O12晶体磁光法拉第旋转的色散关系,也测量了从室温到液氮温度磁光旋转在633nm的变化。大的磁光旋转和很宽光波范围的高透过率表明晶体在磁光应用上也是很有价值的。扼要讨论了Bi离子在抗磁晶体中对磁光旋转的重要作用。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.
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