1. Physics Department, Faculty of Science Yanbu, Taibah University, Yanbu, B.P 41912, Kingdom of Saudi Arabia
2. Physics Department, Faculty of Science, Alexandria University, Alexandria, B.P 21500, Egypt
3. Physics Department, Faculty of Science, Taibah University, Al-Madina al Munawarah, B.P 44256, Saudi Arabia
4. Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box 2455, Riyadh 11421, Saudi Arabia
5. Physics Department, Faculty of Science, Ain Shams University, Cairo, B.P 11865, Egypt.