1. School of Materials Science and Nanotechnology, Jadavpur University, Kolkata 700032, India
2. Department of Physics, Jadavpur University, Kolkata 700032, India
3. Faculty of Engineering and Computing Sciences, Teerthanker Mahaveer University, Moradabad, UP 244001, India
4. Department of Mechanical Engineering, Jadavpur University, Kolkata 700032, India