1. Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India
2. Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India
3. Research Institute for Sustainable Energy, TCG Centres for Research and Education in Science and Technology, Sector V, Salt Lake, Kolkata, West Bengal 700091, India
4. Centre for Quantum Engineering, Research and Education, TCG Centres for Research and Education in Science and Technology, Sector V, Salt Lake, Kolkata, West Bengal 700091, India