1. Department of Physics, College of Engineering, Bhubaneswar 751024, Odisha, India
2. Department of Physics, Faculty of Engineering and Technology (ITER), Siksha ‘O’ Anusandhan (Deemed to Be University), Bhubaneswar 751030, Odisha, India
3. Institute of Materials Science, Planetarium Building, Bhubaneswar 751013, Odisha, India