1. International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala 686 560, India
2. Seismology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
3. Department of Physics, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu 641021, India
4. Centre for Computational Physics, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu 641021, India
5. School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam, Kerala 686 560, India
6. School of Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala 686 560, India
7. High Pressure & Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
8. Homi J Bhabha National Institute, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India