1. University of Nice-Sophia Antipolis, CNRS, Laboratory of Condensed Matter Physics – UMR 7336, Parc Valrose, 06100 Nice, France
2. Urals Federal University, Lenina Ave 51, 620083 Ekaterinburg, Russia
3. Department of Aerospace Engineering, University of Maryland, 3179F Glenn L Martin Hall, College Park, Maryland 20742, USA