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The infrared spectrum of Cd3As2
Affiliation:1. Prokhorov General Physics Institute, Russian Academy of Sciences, 119991 Moscow, Russia;2. P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Leninskiy Prospekt 53, 119991 Moscow, Russia;3. Institute of Molecule and Crystal Physics, Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, 450075 Ufa, Russia;4. Moscow Institute of Physics and Technology (State University), 141700 Dolgoprudny, Russia;1. Department of Physics, Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, China;2. Center for Integrated Spintronic Devices (CISD), Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, China;1. Department of Physics, University of Seoul, Seoul 02504, Republic of Korea;2. Nano Materials Evaluation Center, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea;3. YUHS-KRIBB Medical Convergence Research Institute, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea;1. Key Laboratory of Terahertz Solid-State Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, China;2. Department of Physics, JiangSu University, ZhenJiang 212013, China;3. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;4. School of Engineering Physics, University of Wollongong, New South Wales 2552, Australia;5. State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, China
Abstract:We present new measurements of infrared reflectivity of Cd3As2 at 15 K. One plasmon and eleven phonon characteristics are determined by the fitting process that reveals weak dipolar moments in the structure.
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