1. Centre of Excellence in Solid State Physics, University of the Punjab, Lahore-54000, Pakistan
2. Department of Physics, Nazarbayev University, Astana 010000, Kazakhstan
3. Center for Applied Mathematics and Bioinformatics (CAMB), Gulf University for Science and Technology, 32093 Hawally, Kuwait
4. Department of Mathematics, Nazarbayev University, Astana 010000, Kazakhstan