1. Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic;
2. Institute of Physics, Chinese Academy of Sciences, Beijing, P. R. China;
3. Department of Applied Physics, Chongqing University, Chongqing, P. R. China;
4. Institute of Inorganic Chemistry, Czech Academy of Sciences, Řež, Czech Republic;
5. Faculty of Nuclear Science and Physical Engineering, Czech Technical University, Prague, Czech Republic;
6. Department of Physics, Budapest University of Technology and Economics and MTA-BME Lendület Magneto-optical Spectroscopy Research Group, Budapest, Hungary