1. Laboratory for Low Dimensional Materials, Institute of Physics, Bhubaneswar 751005, India
2. Homi Bhabha Training School Complex, Anushakti Nagar, Mumbai 400094, India
3. Computational Materials and Nanoscience Group, Department of Physics and Electronics, St. Xavier’s College, Ahmedabad 380009, India
4. Condensed Matter Theory Group, Department of Physics and Astronomy, Uppsala University, S-75120 Uppsala, Sweden
5. Department of Physics, Indian Institute of Technology Ropar, Rupnagar 140001, Punjab, India