Rayees Ahmad Zargar, PhD, is an assistant professor in the Department of Physics, Baba Ghulam Shah Badshah University, Rajouri, India, and has been associated with the prestigious laboratory CSIR-National Physical Laboratory (CSIR-NPL), New Delhi for 10 years. He has wide expertise in the field of superconductors, manganites, and optical properties of semiconductors. He is an author or co-author of more than 60 research articles as well as three books.