Three-dimensional visualization of magnetic domain structure with strong uniaxial anisotropy via scanning hard X-ray microtomography
| Autor: | Kab-Jin Kim, Hiroki Yoshikawa, Kihiro T. Yamada, Tian Li, Teruo Ono, Takuya Taniguchi, Mio Ishibashi, Yuushou Hirata, Takayuki Tono, Motohiro Suzuki, Hayato Mizuno, Daichi Chiba, Kent Oda, Sanghoon Kim, Arata Tsukamoto |
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| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Materials science Magnetic domain Magnetic circular dichroism business.industry Resolution (electron density) General Engineering General Physics and Astronomy Reconstruction algorithm 02 engineering and technology 021001 nanoscience & nanotechnology Magnetic field 03 medical and health sciences 030104 developmental biology Optics Ferromagnetism 0210 nano-technology Anisotropy business Image resolution |
| Zdroj: | Applied Physics Express. 11:036601 |
| ISSN: | 1882-0786 1882-0778 |
| DOI: | 10.7567/apex.11.036601 |
| Popis: | An X-ray tomographic technique was developed to investigate the internal magnetic domain structure in a micrometer-sized ferromagnetic sample. The technique is based on a scanning hard X-ray nanoprobe using X-ray magnetic circular dichroism (XMCD). From transmission XMCD images at the Gd L3 edge as a function of the sample rotation angle, the three-dimensional (3D) distribution of a single component of the magnetic vector in a GdFeCo microdisc was reconstructed with a spatial resolution of 360 nm, using a modified algebraic reconstruction algorithm. The method is applicable to practical magnetic materials and can be extended to 3D visualization of the magnetic domain formation process under external magnetic fields. |
| Databáze: | OpenAIRE |
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