1. Department of Sciences, Amrita School of Physical Sciences, Amrita Vishwa Vidyapeetham, Coimbatore, Tamil Nadu 641 112, India
2. Electronic Materials and Thin Films Lab, Department of Metallurgical and Materials Engineering, IIT Madras, Chennai, Tamil Nadu 600 036, India
3. Centre of Excellence in Ceramics Technologies for Futuristic Mobility, IIT Madras, Chennai, Tamil Nadu 600 036, India