About the Authors

Rakhi Sharma

Department of Physics, Gurukula Kangari Vishwavidyalaya, Haridwar-249401, India

B. D. Indu

Department of Physics, Indian Institute of Technology Roorkee, Roorkee-247667, India

Pawan Kumar

Department of Physics, Gurukula Kangari Vishwavidyalaya, Haridwar-249401, India

Corresponding Author

Email: drbdindu@gmail.com