1. Materials
Research Center for Element Strategy, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
2. Graduate
School of Science and Technology, Hirosaki University, 1 Bunkyo-cho, Hirosaki-shi, Aomori-ken 036-8560, Japan
3. Research
Center for Development of Far-Infrared Region, University of Fukui, Bunkyo 3-9-1, Fukui 910-8507, Japan
4. Institute
of Radio Physics and Electronics, National Academy of Science of Ukraine, Volodymyrska 54, Kyiv, 01030, Ukraine
5. Physical Sciences Division, Physical & Computational Sciences Directorate, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, United States