1. Department of Physics, Karpagam Academy of Higher Education, Coimbatore 641 021, Tamil Nadu, India
2. Centre for Material Chemistry, Karpagam Academy of Higher Education, Coimbatore 641 021, Tamil Nadu, India
3. Department of Physics, School of Advanced Sciences, Kalasalingam Academy of Research and Education, Krishnankoil – 626 126, Tamil Nadu, India
4. Department of Science and Humanities, Karpagam Academy of Higher Education, Coimbatore 641 021, Tamil Nadu, India
5. Centre for High Computing, CSIR-Central Leather Research Institute, Chennai-600 020, India