Dr. Kartik Sau is a Specially Appointed Senior Assistant Professor at the Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Japan. His research focuses on the computational exploration of novel materials for sustainable energy applications. With expertise in molecular dynamics and density functional theory calculations, Dr. Sau investigates materials with potential for use in solid-state batteries, barocaloric cooling/heating systems, and hydrogen storage solutions. His work on fast ion conductors, essential for the development of efficient solid-state batteries, has been a central theme throughout his research career, from his doctoral and postdoctoral studies to his current position. Dr. Sau's research contributes to the advancement of sustainable energy technologies through the discovery and design of novel materials with enhanced functionalities.