1. Department of Physics, Savitribai Phule Pune University, Pune 411 007, India
2. Department of Applied Science and Humanities, Pimpri Chinchwad College Of Engineering (PCCOE), Nigdi, Pune 411 004, India
3. Department of Materials Engineering, Indian Institute of Science, Bangalore 560 012, India
4. Department of Physics, Khalifa University of Science and Technology, Abu Dhabi 127788, UAE