1. Department of Physics, Riphah International University, Lahore, Pakistan
2. Institute of Physics, UFRGS, 91509-900 Porto Alegre, Rio Grande do Sul, Brazil
3. School of Mechanical and Electronic Engineering, Quanzhou University of Information Engineering, Quanzhou, Fujian 362000, People’s Republic of China
4. Department of Physics, COMSATS University Islamabad, 44000, Pakistan
5. Department of Physics, Quaid-i-Azam University Islamabad, 45320, Pakistan
6. Department of Food Science and Nutrition, College of Science, Taif University, P.O. box 11099, Taif 21944, Saudi Arabia
7. School of Integrated Circuit Science and Engineering, University of Electronic Sciences and Technology of China, Chengdu 610054, People’s Republic of China