1. Groupe d’Etude de la Matière Condensée (GEMaC), Université de Versailles Saint Quentin en Y- CNRS, Université Paris-Saclay, 45 Av. des Etats-Unis, 78035 Versailles Cedex, France
2. Solid State Physics Department, National Research Center, El-Behooth Street 12311 Dokki, Giza, Egypt
3. Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Barcelona, Spain
4. College of Engineering, Swansea University, Bay Campus, Fabian Way, Crymlyn Burrows, Swansea SA1 8EN, U.K.