Bi-substituted iron garnet films for one-dimensional magneto-photonic crystals: Synthesis and properties

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• 作者：A.N. Shaposhnikov^a ; A.V. Karavainikov^a ; A.R. Prokopov^a ; V.N. Berzhansky^a ; O.Y. Salyuk^b ; ^{olga-saliuk@yandex.ru}
• 关键词：A. Magnetic materials ; A. Structural materials ; B. Sputtering ; D. Magnetic properties ; D. Optical properties
• 刊名：Materials Research Bulletin
• 出版年：2012
• 期刊代码：60_00255408
• 类别：ms
• 出版时间：June, 2012
• 卷：47
• 期：6
• 页码：1407-1411
• 文件大小：603 K

摘要

The crystallization processes in Bi_2.8Y_0.2Fe₅O₁₂, Bi_2.5Gd_0.5Fe_3.8Al_1.2O₁₂, Bi_1.5Gd_1.5Fe_4.5Al_0.5O₁₂ and Bi_1.0Y_0.5Gd_1.5Fe_4.2Al_0.8O₁₂ garnet films deposited by reactive ion beam sputtering on (1 1 1) gadolinium-gallium garnet substrates, optical glass-ceramic and SiO₂ films have been studied. Films were annealed at low pressure in oxygen atmosphere and in the air. The possibility of preparation of crystalline garnet films with high concentration of bismuth on the SiO₂ films using a buffer layer with low concentration of Bi has been shown. This allows to produce one-dimensional magneto-photonic crystals with high effective Faraday rotation (several tens of掳/渭m for the visible optical spectrum).