1. Department of Physics, School of Advanced Sciences, VIT University, Vellore, India
2. New Technologies- Research Center, University of West Bohemia, Plzeň, Czech Republic
3. Center for Advanced Materials, Qatar University, Doha, Qatar
4. Department of Science and Humanities, PES Institute of Technology, South Campus, Bangalore, India
5. Department of Physics, VIT-AP University, Amaravati, Guntur, India