White Neutron Holography: Study of Local Structures of Light Elements around dopants

Abstract

  Performance of functional materials, such as semiconductors, can be controlled by foreign element doping. Thus, positions of dopants in lattices and effects of doping to lattices must be important to understand origins of properties. The atomic structures around dopants are called local structures. One of direct probes for local structures is atomic resolution holography. In this article, we report importance of atomic resolution holography for materials science, in particular, newly developed neutron holography using white neutrons, which is an effective probe for observation of local structures of light elements.