1. School of Nano Science and Technology, IIT Kharagpur, Kharagpur, West Bengal721302, India
2. Advanced Technology Development Centre, IIT Kharagpur, Kharagpur, West Bengal721302, India
3. Department of Metallurgical and Materials Engineering, IIT Kharagpur, Kharagpur, West Bengal721302, India
4. Applied Physics Department, University of Campinas, Campinas, Sao Paulo13083970, Brazil
5. School of Medical Science and Technology, IIT Kharagpur, Kharagpur, West Bengal721302, India
6. Department of Physics, IIT Kharagpur, Kharagpur, West Bengal721302, India