Multiscale characterization of functional materials.
To understand the structure-property relationships of magnetic and spintronic materials and their devices, various microscopy techniques are employed and though multiscale characterization of functional materials such as soft/hard magnetic materials, spintronic materials and their devices, semiconductor devices using SEM-FIB, TEM and 3DAP techniques to obtain understanding of structure-property relationships. Keeping state-of-the-art nanostructure analysis techniques, including the development of laser assisted 3DAP.
Due to the reorganization at NIMS on April 1st, 2023, the group has been reorganized as two groups;Nanostructure Analysis Group
Green Magnetic Materials Group
To understand the structure-property relationships of magnetic and spintronic materials and their devices, various microscopy techniques are employed and though multiscale characterization of functional materials such as soft/hard magnetic materials, spintronic materials and their devices, semiconductor devices using SEM-FIB, TEM and 3DAP techniques to obtain understanding of structure-property relationships. Keeping state-of-the-art nanostructure analysis techniques, including the development of laser assisted 3DAP.
Due to the reorganization at NIMS on April 1st, 2023, the group has been reorganized as two groups;
What's New!!
- 2023.04.01
- Due to the reorganization at NIMS on April 1st, 2023, the group has been reorganized as two groups; "Nanostructure Analysis Group" & "Green Magnetic Materials Group".
- 2022.12.09
- Dr. H. Sepehri-Amin received the "AUMS Young Researcher Award" from the Asian Union of Magnetics Societies (AUMS). The award is given to a researcher who has made outstanding achievements in the areas of magnetism, magnetic materials, and their applications.
- 2022.12.05
- The Science and Technology Promotion Foundation of Ibaraki (President: Dr. Leo Esaki) has announced that Dr. H. Sepehri-Amin is a recipient of "The Tsukuba Encouragement Prize 2022 (Young Researchers)". The award is for his research on high-performance permanent magnets without using rare-elements.
- Tsukuba Prize and Tsukuba Encouragement Prize
- 2022.10.30
- A paper entitled "Effect of Ultra-High-Pressure Annealing on Defect Reactions in Ion-Implanted GaN Studied by Positron Annihilation" by A. Uedono, H. Sakurai, J. Uzuhashi et al. has been featured as Cover Picture of Physica Status Solidi (B) 259 [10].
- 2022.09.01
- A review paper entitled "Complementary and correlative (S)TEM/APT analysis of functional and structural alloys" by T.T. Sasaki et al. has been published.
- T.T. Sasaki et al., MRS Bulletin 47, 688–695 (2022)
- 2022.08.23
- We succeeded in observing the 3D magnetic domain structure of an advanced high-coercivity Nd-Fe-B based permanent magnet using a hard X-ray magnetic tomography technique. This achievement is based on collaboration with Tohoku Univ., Kansei Gakuin Univ., JASRI, Daido Steel Co. and NIMS (A. Bolyachkin, H. Sepehri-Amin, T. Ohkubo, K. Hono).
- 3D analysis of magnetic domain structure inside permanent magnets becomes possible.
- NPG Asia Materials 14, 70 (2022)
- 2022.05.31
- Dr. H. Sepehri-Amin recieved "The 43rd Honda Memorial Young Researcher Award". The award is for his research on high-performance permanent magnets without using rare-elements. Award ceremony was held on May 27th at GakushiKaikan, Tokyo.
