1. UJM‐Saint‐Etienne CNRS, LabHC UMR 5516 Univ Lyon Saint‐Etienne France
2. Faculty of Sciences Materials and Renewable Energies Laboratory Agadir Morocco
3. Materials and Environment (LME) Laboratory Faculty of Sciences University Ibn Zohr Agadir Morocco
4. Materials Physics Laboratory FST University of Sultan Moulay Slimane Béni Mellal Morocco