Kinetic studies of electronically conducting Yb3Al5O12 garnet |
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| Institution: | 1. National Research Nuclear University “Moscow Engineering Physics Institute”, Moscow, Russia;2. A.A. Bochvar High-Technology Research Institute of Inorganic Materials, Moscow, Russia;1. Department of Quantum Science & Energy Engineering, Graduate School of Engineering, Tohoku University, Sendai, 980-8579, Japan;2. National Institute for Fusion Science, Toki, 509-5292, Japan |
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| Abstract: | Upon reduction, originally fully transparent and insulating ytterbium alumina garnet single crystals, Yb3Al5O12, become deeply colored and electrically conducting with a conductivity of the order of 10− 3 Ω− 1 cm− 1 in the temperature range of 550 °C to 1000 °C. The redox kinetics of the material is studied by means of conductivity relaxation experiments performed at oxidising and reducing conditions. Good agreement is obtained with an optical study into the redox kinetics of Yb3Al5O12. |
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