Development of an X-ray tomographic technique for three-dimensional observation of internal magnetic domains
Magnetic domain structures are known to reflect the fundamental magnetic properties of materials. Observation of the magnetic domain structure is important for understanding the magnetic characteristics of systems, including practical magnetic materials. Most existing techniques are, however, limited to the observation of surfaces where the magnetic domain structures are two-dimensional. In this study, we developed an X-ray tomographic technique to see through the internal magnetic domain structure in a micrometer-sized ferromagnetic sample by reconstructing the three-dimensional distribution of magnetization.