1. Department of Physics, Faculty of Science and Technology, ICFAI foundation for Higher Education (IFHE), Hyderabad, Telangana, India;
2. Research and Development Centre, Vardhaman College of Engineering, Shamshabad, Hyderabad, Telangana, India;
3. Centre for Ceramic Processing, International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Balapur, Hyderabad, Telangana, India