1. Material Research Laboratory, Discipline of Physics and MSEG; Indian Institute of Technology Indore; Madhya Pradesh 452020 India
2. Department of Physics; Indian Institute of Technology Delhi; Hauz Khas New Delhi 110016 India
3. Department of Physics; National Institute of Technology Meghalaya; Laitumkhrah Shillong 793003 Meghalaya India
4. UGC-DAE Consortium for Scientific Research; University Campus; Indore Madhya Pradesh 452017 India
5. Discipline of Mathematics; Indian Institute of Technology Indore; Madhya Pradesh 452017 India