Ce-YIG磁光薄膜磁光效应机理研究.pdf

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A Study on the Mechanism of the Magaeto optic Effects
of Ce : YIG Magneto optic Thin Fimls
MEI Yan ling1 , HU Hua an2 , HE Chang jian3
(1. Department of Electrical Engineering and Applied Physics , Hubei Institute for Nationalities , Enshi 445000 , China ;
2. Department of Army Goods and Materiats , Wuhan Institute of Economics , Wuhan 430035 , China ;
3. College of Health and Technology New Jianghan University , Wuhan 430016 , China)
Abstract : The couple orbits among 5d ,4f , and 3d orbits are existent because of the substitution of Ce3 + ion accord
ing to the calculation of electronic structure of Ce : YIG. The couple orbits have large spin orbit interaction. The calcula
tion results also show that there are electronic transitions Fe3 + (3d) →Ce3 + (4f) that ma be the origin of transition centers
of 1. 5 eV and 2. 1 eV shown the large optical absorption. The density of transition center is proportional to cerium cont
ent. The optical absorption spectra and magneto optic merit of Y3 x CexFe5 O8 on x = 0. 3 ,0. 7 are calculated respectively
between 1. 0～3. 2 eV. Calculated resul