1. Condensed Matter Theory Research Group, Department of Physics, Mizoram University, Tanhril 796009, Mizoram, India
2. Department of Physics, Govt. Kolasib College, Kolasib 796081, Mizoram, India
3. Department of Physics, Pachhunga University College, Aizawl 796001, Mizoram, India
4. Department of Physics, Assam University, Silchar 780010, Assam, India
5. Department of Physics, North-Eastern Hill University, Shillong 793 003, India