1. College of Science, Department of Chemistry, University of Jeddah, Jeddah 21589, Saudi Arabia
2. Physics Department, Faculty of Science, Benha University, 13518 Benha, Egypt
3. Université de Limoges, XLIM, CNRS, UMR 7252, Limoges F-87000, France
4. Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
5. Solid-State Physics Department, Physics Research Institute, National Research Centre, 33 El Bohouth St., Dokki, Giza 12622, Egypt