1. P.G. Department of Physics, Sardar Patel University, Vallabh Vidyanagar, Gujarat, India
2. Indukaka Ipcowala Centre for Interdisciplinary Studies in Science and Technology (IICISST), Sardar Patel University, Vallabh Vidyanagar, Gujarat, India
3. Department of Physics, Saurashtra University, Gujarat, Rajkot, India