Faraday Rotation and Transition of Spin Configuration in Terbium Iron Garnet at Very High Magnetic Fields
Faraday Rotation and Transition of Spin Configuration in Terbium Iron Garnet at Very High Magnetic Fields
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极高磁场下铽铁石榴石的法拉第旋转和自旋构型跃迁
DOI：
10.1143/jpsj.48.71
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发表时间：
1980
影响因子：
1.7
通讯作者：
S. Chikazumi
中科院分区：
文献类型：
--
作者：
Fu;N. Miura;G. Kido;S. Chikazumi
为了确定从共线相到倾斜相的自旋翻转转变的临界场，在高达兆高斯的极高磁场下观察了TbIG的法拉第旋转和磁化。在很宽的温度范围内，临界场被确定为温度的函数。在低于补偿点的温度下观察到临界场的大的各向异性。利用考虑外场线性项的公式分析了1.06 μm波长下法拉第旋转的磁场依赖性及其温度依赖性。
Faraday rotation and magnetization were observed for TbIG in very high magnetic fields up to the megagauss range for determining the critical field of the spin-flip transition from the collinear phase to the canted phase. The critical field was determined as a function of temperature over a wide temperature range. A large anisotropy in the critical field was observed at temperatures lower than the compensation point. The magnetic field dependence of the Faraday rotation at 1.06 µm wavelength, together with its temperature dependence were analyzed by using a formula which takes into account a linear term of the external field.