1. Institute of Physics of the NAS of Ukraine
2. Kyiv 03028
3. Ukraine
4. National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
5. Kyiv 03056
6. Institute of Magnetism of the NAS of Ukraine and MES of Ukraine
7. Kyiv 03680
8. V.I. Vernadskii Institute of General and Inorganic Chemistry of the NAS of Ukraine