1. Department of Physics, University of Kalyani, Kalyani 741235, West Bengal, India
2. Gokhale Memorial Girls’ College, 1/1 Harish Mukherjee Road, Kolkata 700020, India
3. Department of Physics, Diamond Harbour Women’s University, Diamond Harbour Road, Sarisha, South 24 Parganas, West Bengal 743368, India