1. Electroceramics Research Lab, GVM Girls College, Sonepat 131001, India
2. School of Physics & Material Science, Thapar University, Patiala 147004, India
3. Department of Physics, Hindu College, Sonepat 131001, India
4. Directorate of ER&IPR, DRDO, DRDO Bhawan, New Delhi 110105, India