1. Department of Pure and Applied Physics, Guru Ghasidas Vishwavidyalaya, Bilaspur 495009, India
2. Materials Science Group, Indira Ghandhi Centre for Atomic Research, HBNI, Kalpakkam 603102 India
3. Variable Energy Cyclotron Center, 1/AF Bidhannagar, Kolkatta 700064, India
4. High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400008, India
5. UGC-DAE CSR, University Campus, Khandwa Road, Indore 452001, India