1. G. V. Kurdyumov Institute for Metal Physics, National Academy of Sciences of Ukraine, 36 Academician Vernadsky Blvd., Kyiv 03142, Ukraine
2. V.N. Bakul Institute for Superhard Materials, National Academy of Sciences of Ukraine, 2 Avtozavodskaya Str., Kyiv 04074, Ukraine
3. O. O. Galkin Donetsk Institute for Physics and Engineering, National Academy of Sciences of Ukraine, 46 Nauki Ave., Kyiv 03028, Ukraine and Vasyl' Stus Donetsk National University, 21 600-richya Str., Vinnytsia 21021, Ukraine
4. G. V. Kurdyumov Institute for Metal Physics, National Academy of Sciences of Ukraine, 36 Academician Vernadsky Blvd., Kyiv 03142, Ukraine and Vasyl' Stus Donetsk National University, 21 600-richya Str., Vinnytsia 21021, Ukraine
5. Superconducting Electronics Group, IMEP-LAHC–CNRS UMR 5130, Université Savoie Mont Blanc, Le Bourget du Lac Cedex 73376, France