Arunava Mandal

Physics Department, Visva-Bharati Central University, P.O.- Santiniketan, West Bengal, India

Sandip Pan

Physics Department, Visva-Bharati Central University, P.O.- Santiniketan, West Bengal, India

Subrata Mukherjee

Physics Department, Visva-Bharati Central University, P.O.- Santiniketan, West Bengal, India

Achintya K. Saha

Physics Department, Visva-Bharati Central University, P.O.- Santiniketan, West Bengal, India

Sabu Thomas

Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, India

Asmita Sengupta

Physics Department, Visva-Bharati Central University, P.O.- Santiniketan, West Bengal, India