Affiliation: | 1.Physics Department, College of Science, Jouf University, Al-Jouf, P.O. Box 2014, Sakaka, Saudi Arabia ;2.Higher Institute for Engineering and Technology, El-Minya, 61768, Egypt ;3.Physics Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt ;4.Physics Department, Faculty of Science, Al-Azhar University, Assiut, 71542, Egypt ;5.Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt ; |