1. Department of Solid State Physics, Faculty of Physics and Applied Informatics, University of Lodz, Pomorska 149/152, 90-236 Lodz, Poland
2. Department of Precision Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita 565-0871, Japan
3. Department of Materials Science and Chemistry, Faculty of Systems Engineering, Wakayama University, Sakaedani 930, Wakayama 640-8510, Japan