1. Laboratory of Materials Organization and Properties LMOP (LR99ES17) University of Tunis El Manar Tunis Tunisia
2. Faculty of Sciences, Department of Physics King Khalid University Abha Saudi Arabia
3. Laboratory of spectroscopic and optical characterizations of materials, Faculty of Sciences of Sfax University of Sfax Sfax Tunisia
4. GREMAN UMR 7347‐CNRS, CEA, INSA CVL University of Tours Blois France