1. Nanomaterials Technology Unit, Basic and Applied Scientific Research Center (BASRC), Physics Department, College of Science of Dammam, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
2. Physics Department, College of Sciences, Umm AL-Qura University, P.O. Box 715, Makkah 24382, Saudi Arabia
3. Department of Physics, Faculty of Science, Sivas Cumhuriyet University, Sivas 58140, Turkey
4. Materials Science & Engineering Program, Department of Chemistry, and Department of Physics & Astronomy, University of California-Riverside, Riverside, CA 92521, USA