1. Department of Physics, Ramsaday College, College Road, Amta, Howrah 711401, West Bengal, India
2. Department of Physics, Jadavpur University, Jadavpur, Kolkata 700032, India
3. School of Nano Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
4. Department of Materials Engineering, Indian Institute of Science, Bengaluru 560012 Karnataka, India
5. School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India