1. Department of Physics, University of Peshawar, Peshawar, KP, Pakistan
2. Department of Physics, Women University of Azad Jammu & Kashmir Bagh, Pakistan
3. Physics and Astronomy Department, College of Science, P. O. Box 2455, King Saud University, Riyadh 11451, Saudi Arabia
4. Chemical Engineering Department, College of Engineering, King Saud University, Riyadh