Three-Dimensional Magnetic Field Tomography Using a Dual-Axis 360° Rotation Specimen Holder
Abstract: A dual-axis 360° rotation holder for a pillar-shaped specimen was developed in order to improve the three-dimensional reconstruction of a magnetic field. Two magnetic field components are reconstructed by using the dual rotation series, and the other component is calculated from the two reconstructed components using the Maxwell's equation, but the reconstructed components were disturbed by the projection angle limitation incurred when using a conventional holder for a thin specimen. However, reconstructed components without the projection angle limitation effect were obtained when using our new holder and the calculated component was improved. We show this improvement by using a magnetic field distribution known specimen.
Key words: magnetic field tomography, dual-axis 360° rotation holder, pillar-shaped specimen, projection angle limitation, electron holography