1. Department of Physics, Kohat University of Science and Technology (KUST), Kohat, Pakistan
2. Department of Physics, University of Peshawar, Peshawar 25000, Pakistan
3. Theoretical Physics Division (TPD), PINSTECH, P.O. Nilore, Islamabad 44000, Pakistan
4. Department of Physics and Astronomy, Centre for Plasma Physics, Queen's University Belfast, BT7 1NN Northern Ireland, United Kingdom