1. Department of Physics, School of Advanced Sciences, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India
2. Ceramic Composite Group, Defense Metallurgical Research Laboratory, Hyderabad, 500058, Telengana, India
3. School of Electronics Engineering, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India
4. Center for Functional Materials, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India