Institution: | 1. Institute of Applied Physics, Russian Academy of Science, Nizhny Novgorod, 603950, Russia 2. Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, Nizhny Novgorod, 603950, Russia 3. Department of Physics and Astronomy, Texas A&M University, College Station, TX, 77843-4242, USA
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