1. Department of Physics, Jamia Millia Islamia, New Delhi 110025, India
2. Institute for Plasma Research, Bhat, Gandhinagar 382428, India
3. Crystal Growth and Instrumentation Section, Laser and Functional Materials Division, Raja Ramanna Centre for Advanced Technology, Indore 452013, India
4. Homi Bhabha National Institute, Training School
Complex, Anushakti Nagar, Mumbai 400094, India
5. Materials Science Group, IGCAR, Kalpakkam 603102, India
6. CSIR-National Physical Laboratory, In-House BND Group, Dr. K. S. Krishnan Road, New Delhi 110012, India
7. VSM Group of Institutions, Ramachandrapuram, E.G. (Dt.), Andhra Pradesh 533255, India