1. Thin Film Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India
2. SINTEF Industry, Høgskoleringen, NO: 57046, Trondheim 7491, Norway
3. SINTEF Industry, Materials Physics, Forskningsveien 1, NO: 0373, Oslo 0314, Norway
4. Directorate of Research, Innovation and Development, Jaypee Institute of Information Technology, Noida, Uttar Pradesh 201309, India