1. Laboratoire National des Champs Magnétiques Intenses, CNRS-UGA-UPS-INSA, Grenoble and Toulouse, 143 Avenue de Rangueil, 31400 Toulouse, France
2. Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
3. Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Fifth Grudziadzka Street, 87-100 Torun, Poland
4. Department of Experimental Physics, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, 27 Wyb. Wyspiańskiego Street, 50-370 Wroclaw, Poland