1. Department of Physics University of Calcutta Kolkata India
2. New Chemistry Unit Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bangalore India
3. Department of Low temperature Physics and Superconductivity, Physics Faculty M V Lomonosov Moscow State University Moscow Russia
4. Moscow Institute of Physics and Technology Dolgoprudny Russia
5. UGC‐DAE Consortium for Scientific Research, Kalpakkam Node Kokilamedu India
6. Department of Physics Raiganj University Uttar Dinajpur India
7. Center for Research in Nanoscience and Nanotechnology University of Calcutta Kolkata India