The research focus of the Lee’s group is on the precision synthesis of functional and quantum materials with controlled interfaces and architectures to discover novel physical phenomena and behaviors. Our advanced quantum synthesis and analysis system combining the controlled synthesis of interfacial heterostructures by pulsed-laser deposition and molecular-beam epitaxy and the quantum analysis by spin-resolved laser-ARPES and low-temperature quantum transport plays a pivotal role in developing and discovering novel quantum materials. We are working on thin films and heterostructures composed of transition-metal oxides and chalcogenides with particular emphases on understanding and exploiting correlation, spin-orbit coupling, topology, strain engineering, and oxygen defects for energy and information technologies and quantum information science.