New electronics using electron spin degrees of freedom -- Spintronics, Quantum Science & Technology:
We are conducting basic research on new electronic materials and devices for their future applications to electronic, optical, and magnetic (spin) devices, as well as their hybrid devices. Specifically, (1) we perform epitaxial growth of nano-scale ultrathin films, artificial nanostructures, and quantum heterostructures in which quantum mechanical effects appear, using various materials such as semiconductors, metals, semimetals, ferromagnetic materials, superconductors, and topological materials. (2) We design and create new materials at the atomic level that do not exist in nature, and study the materials science and physical properties of these new materials, and fabricate prototypes of devices to provide guidelines for future electronics applications. In particular, we are focusing on the creation of new materials in which electron spin and its order (magnetism) are prominent and their application to semiconductor electronics, so called "spintronics". Furthermore, we aim to control the quantum states, including spin states, and develop quantum science and technology.