1. Department of Thin Films and Nanostructures, FZU – Institute of Physics of the Czech Academy of Sciences, Cukrovarnicka 10/112, 162 00 Prague 6, Czech Republic
2. Department of Physical Chemistry and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 2030, 128 43 Prague 2, Czech Republic
3. J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejskova 2155/3, 183 23 Prague 8, Czech Republic
4. Department of Magnetics and Superconductors, FZU – Institute of Physics of the Czech Academy of Sciences, Cukrovarnicka 10/112, 162 00 Prague 6, Czech Republic
5. Department of Optical Materials, FZU – Institute of Physics of the Czech Academy of Sciences, Cukrovarnicka 10/112, 162 00 Prague 6, Czech Republic