Dr. Vijay Kumar is an Assistant Professor at National Institute of Technology, Srinagar, J&K, India. He was a postdoc fellow in Professor Swart's group at the University of the Free State, South Africa from April 2013- December 2015. He received his Ph.D. (Physics/Material Science) from Sant Longowal Institute of Engineering and Technology, Longowal (Deemed University) in Collaboration with Inter University Accelerator Center (Formerly known as Nuclear Science Center), New Delhi. During the last eight years of his research career, he has published more than 75 research papers in many of the reputed international journals, which attracted more than 1910 citations. He has already edited 2 books for Springer and Wiley respectively. He is a reviewer for about 40 international and national professional journals in his field (or in related fields) And active as editorial board member He is a leading guest editor of Virtual Special Issue of VACUUM and Materials Today: Proceedings (bot