1. Department of Physics, University of Peshawar, Peshawar 25000, Pakistan
2. Theoretical Physics Division (TPD), PINSTECH P.O. Nilore Islamabad 44000, Pakistan
3. National Center for Physics (NCP), Quaid-i-Azam University Campus, Shahdra Valley Road, Islamabad 44000, Pakistan
4. Department of Physics, Kohat University of Science & Technology (KUST), Kohat, Pakistan