An investigation on the terbium gallium garnet magneto-optic properties of under high magnetic field  

作　　者：杨国 张国营 高娇 薜刘萍 夏天 张学龙 

机构地区：[1]Department of Physics, College of Science, China University of Mining and Technology, Xuzhou 221008, China [2]College of Medical Mechanism, Shanghai University of Science and Technology, Shanghai 200093, China

出　　处：《Chinese Physics B》2011年第1期627-630,共4页中国物理B（英文版）

摘　　要：The superexchange interaction on a magnetic ion may be represented by an effective field Hm =λM in some paramagnetic materials, here λis the coefficient of effective field and M = XHe with X being the magnetic susceptibility and He being the applied field. The variation of the equivalent λX with the dynamic applied field is given and the crystal field-splitting levels of the excited configuration 4f75d1 of the Tb3＋ ion are calculated in the Tb3Ga5O12. By means of the effective field Hm and the applied field He, the Faraday rotation of Tb3CasO12 at 6 K and 41 K, under the high magnetic field and at 0.63μm wavelength, are presented. Our calculated results are in agreement with the experimental data.The superexchange interaction on a magnetic ion may be represented by an effective field Hm =λM in some paramagnetic materials, here λis the coefficient of effective field and M = XHe with X being the magnetic susceptibility and He being the applied field. The variation of the equivalent λX with the dynamic applied field is given and the crystal field-splitting levels of the excited configuration 4f75d1 of the Tb3＋ ion are calculated in the Tb3Ga5O12. By means of the effective field Hm and the applied field He, the Faraday rotation of Tb3CasO12 at 6 K and 41 K, under the high magnetic field and at 0.63μm wavelength, are presented. Our calculated results are in agreement with the experimental data.

关 键 词：terbium gallium garnet high applied field superexchange interaction magneto-optical properties 

分 类 号：O614.33[理学—无机化学] O482.55[理学—化学]