1. Condensed Matter Physics Laboratory, Department of Physics, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, India
2. Nanomaterials and Sensors Research Laboratory, Department of Physics, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, India
3. CSIR-Advanced Materials and Processes Research Institute, Bhopal 462026, Madhya Pradesh, India