1. School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
2. Theoretical Sciences Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore 560064, India
3. Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India