1. Physics Department, An Najah National University, Nablus, Palestine
2. Laboratoire de Physique Quantique de la Matière et de la Modélisation Mathématique (LPQ3M), Université de Mascara, Mascara, Algeria
3. Materials Science Laboratory, School of Physics, Devi Ahilya University, Indore, India
4. Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, Saudi Arabia
5. Physics Department, Universiti Kebangsaan Malaysia, Bangi, Malaysia