1. International Research Center of Spectroscopy and Quantum Chemistry - IRC SQC, Siberian Federal University, 79 Svobodny pr., 660041 Krasnoyarsk, Russia
2. Department of Physics and Astronomy, Uppsala University, Box 516, SE-751 20 Uppsala, Sweden
3. Faculty of Pure and Applied Sciences, R&D Center for Innovative Material Characterization, University of Tsukuba, 1-1-1 Tennnodai, 305-8573 Tsukuba, Ibaraki, Japan