1. Centre for Nano Science and Nano Technology, ITER, Siksha’O’Anusandhan Deemed to be University, Khandagiri, Bhubaneswar 751030, Odisha, India
2. Department of Mechanical Engineering, University of California, Santa Barbara, California 93106, United States
3. Department of Physics, Michigan Technological University, Houghton, Michigan 49931, United States
4. Department of Physics, ITER, Siksha’O’Anusandhan Deemed to be University, Khandagiri, Bhubaneswar 751030, Odisha, India