1. Department of Physics, Faculty of Science, Princess Nora bint Abdul Rahman University Riyadh Saudi Arabia
2. Department of Physics, Faculty of Science, Ain Shams University, Cairo, Egypt
3. Department of Physics, Faculty of Science, King Faisal University, Al-Hofuf, Saudi Arabia
4. Department of Physics and Mathematical Engineering, Faculty of Engineering, Menoufia University, Shebin El-Kom, Egypt