[1] Jadavpur Univ, Dept Phys, Kolkata 700032, India
[2] JIS Univ, Dept Phys, Kolkata 700109, W Bengal, India
[3] Amity Univ Kolkata, Amity Inst Appl Sci, Dept Phys, Kolkata 700135, India
[4] Jadavpur Univ, Dept Geol Sci, Kolkata 700032, W Bengal, India
[5] Amity Univ Uttar Pradesh, Amity Inst Chem Res & Studies, Noida 201301, India