1. Center of Material Sciences, University of Allahabad, Praygraj 211002, India
2. Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, India
3. Department of Mechanical Engineering, Institute of Engineering and Technology, Lucknow, Uttar Pradesh 226021, India
4. Department of Mechanical Engineering, Indian Institute of Technology, Banaras Hindu University, Varanasi 221005, India