1. Department of Inorganic Polymers “Petru Poni” Institute of Macromolecular Chemistry Aleea Gr. Ghica Voda 41A 700487 Iasi Romania
2. Faculty of Physics Alexandru Ioan Cuza University of Iasi Blvd. Carol I no. 11 700506 Iași Romania
3. CNRS UPR 3228 Laboratoire National des Champs Magnétiques Intenses 25 Rue des Martyrs 38042 Grenoble France