1. Institute of Magnetism of the National Academy of Sciences of Ukraine and Ministry of Education and Science of Ukraine, Kyiv 03142, Ukraine
2. Taras Shevchenko National University of Kyiv, Kyiv 01601, Ukraine
3. BCMaterials & University of Basque Country, UPV/EHU, Bilbao 48080, Spain
4. Ikerbasque, Basque Foundation for Science, Bilbao 48013, Spain