1. State Key Laboratory of Superhard Materials, International Centre of Future Science, Jilin University, Changchun 130012, China
2. Donetsk Institute of Physics and Engineering Named after A. A. Galkin, Kyiv 03028, Ukraine
3. Institut de Ciència Molecular, Departament de Química Inorgànica, Universitat de València, E-46980 València, Spain
4. Department of Correlation Optics, Chernivtsi National University, Chernivtsi 58012, Ukraine