Preparation and Faraday rotation of Nd2O3 doped Fe2O3-SiO2 nano-composite films

Xueling Fang; Lanfang Yao; Lin Li; Lin-lin Tian; Ruiqing Xu; Shuo Wang

doi:10.1117/12.888331

18 February 2011 Preparation and Faraday rotation of Nd₂O₃ doped Fe₂O₃-SiO₂ nano-composite films

Xueling Fang, Lanfang Yao, Lin Li, Lin-lin Tian, Ruiqing Xu, Shuo Wang

Proceedings Volume 7995, Seventh International Conference on Thin Film Physics and Applications; 79951A (2011) https://doi.org/10.1117/12.888331
Event: Seventh International Conference on Thin Film Physics and Applications, 2010, Shanghai, China

Abstract

Magneto-optic properties of magnetic materials have much influence on the performance of these current sensors. For practical using, it is generally demanded that the sensing materials had the good magneto-optic properties of large Faraday rotation. Among the most attractive properties of the transparent materials containing Fe₂O₃ are those related to the magneto-optical effects. The Sol-gel processes are extensively used for the preparation of optical or magneto-optical nano-composite materials though the incorporation of metal ions in the silica matrix. In this study, the Nd₂O₃ doped Fe₂O₃-SiO₂ nano-composite films with different concentrations of Nd₂O₃, heated temperature and the number of layers were prepared by sol-gel method. The dependence of Faraday rotation angle of films is studied at room temperature. We find that appropriate concentrations of Nd₂O₃ (Nd/Si=0.011) doped has improved magneto-optic properties of higher Faraday rotation angle, the θ_F value increases with the decrease of the temperature below 500°C, the absolute value of Faraday rotation angle increases as the number of layers increases.

Citation Download Citation

Xueling Fang, Lanfang Yao, Lin Li, Lin-lin Tian, Ruiqing Xu, and Shuo Wang "Preparation and Faraday rotation of Nd₂O₃ doped Fe₂O₃-SiO₂ nano-composite films", Proc. SPIE 7995, Seventh International Conference on Thin Film Physics and Applications, 79951A (18 February 2011); https://doi.org/10.1117/12.888331

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