1. Laboratory of Advanced Materials Studies and Applications (LEM2A), Physics Department, Faculty of Science, Moulay Ismail University of Meknes, B.P. 11201 Zitoune Meknès, Morocco
2. Faculty of Medicine and Pharmacy of Beni Mellal, Sultane Moulay Slimane University, M’ghila Campus, 23030 Beni Mellal, Morocco
3. Univ. Lille, Institute of Electronics, Microelectronics and Nanotechnology, UMR CNRS 8520, FST, Department of Physics, 59655 Villeneuve d’Ascq, France