(2017-05-29) Tovstolytkin, A.; Shlapa, Yu.; Solopan, S.; Bodnaruk, A.; Kulyk, M.; Kalita, V.; Zamorskyi, V.; Ryabchenko, S.; Belous, A.; Institute of Magnetism of the NAS of Ukraine and MES of Ukraine, 36b Vernadsky Blvd.; Kyiv 03680, Ukraine; V.I. Vernadskii Institute of General and Inorganic Chemistry, NAS of Ukraine; /34 Palladinaave., Kyiv 03680, Ukraine; Institute of Physics, NAS of Ukraine, 46 Nauky Ave., Kyiv 03028, Ukraine; Faculty of Radiophysics, Electronics and Computer Systems, Taras Shevchenko National; University of Kyiv, 4G Glushkova Ave., Kyiv 03680, Ukr
