中性子による磁性材料研究

摘要

Neutrons are an essential tool in magnetic materials research. The characteristics of neutrons include high permeability, high sensitivity to magnetism, low energy and suitablility for observing elementary excitations such as magnons. The high permeability facilitates the analysis of bulk materials such as magnetic materials and in-situ observation at high temperatures, and the keen sensitivity to magnetism makes it possible to determine the magnetic structures and magnetic domain structures of the magnetic materials. Since magnetic structure analysis is difficult with other methods, it is essential to use neutron scattering in practice. Furthermore, we can directly observe the role of spin waves (magnons) in magnetic materials.