Growth of {Tb3}[Sc2−xLux](Al3)O12 Single Crystals for Visible-Infrared Optical Isolators

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• 作者：Kiyoshi Shimamura ; Takayuki Kito ; Elias Castel ; Anastasiya Latynina ; Pablo Molina ; Encarnacin G. Vllora ; Prakasam Mythili ; Philippe Veber ; Jean-Pierre Chaminade ; Akiharu Funaki ; Tsubasa Hatanaka ; Kunih
• 刊名：Crystal Growth & Design
• 出版年：2010
• 出版时间：August 4, 2010
• 年：2010
• 卷：10
• 期：8
• 页码：3466-3470
• 全文大小：815K
• 年卷期：v.10,no.8(August 4, 2010)
• ISSN：1528-7505

文摘

{Tb₃}[Sc_2−xLu_x](Al₃)O₁₂ crystals have been grown and investigated for the first time for magneto-optical applications. Tb₃Al₅O₁₂ exhibits the best magneto-optical features; however, its incongruent melting nature has led to the industrial use of Tb₃Ga₅O₁₂. Tb₃Sc₂Al₃O₁₂ had been proposed as an alternative to Tb₃Al₅O₁₂, but unfortunately its growth also presents several drawbacks. The present investigation shows that by the isovalent substitution of Sc³⁺ by Lu³⁺ in the octahedral site of the garnet structure, it is possible to improve the growth characteristics while preserving the superior magneto-optical properties. We demonstrate that {Tb₃}[Sc_2−xLu_x](Al₃)O₁₂ crystals show a higher visible transparency and a larger Faraday rotation than Tb₃Ga₅O₁₂ crystals. {Tb₃}[Sc_2−xLu_x](Al₃)O₁₂ is therefore a very promising material in particular for new magneto-optical applications in the visible-near IR wavelength region.