Quamtum Matter Measurement Informatics Project
Project Leader IWASAWA Hideaki
Research
Unmasking physics of quantum matter by spin-resolved ARPES and measurement informatics at NanoTerasu
ARPES study on quantum materials
We have developed various angle-resolved photoelectron spectroscopy (ARPES) instruments that enable the observation of the electronic states of materials, with a particular focus on quantum materials. Building upon this expertise, we are currently developing a novel “Nano-Spin ARPES instrument” at the next-generation synchrotron radiation facility, NanoTerasu, which enables the microscopic observation of electron and spin states at micro or nano-scales. Additionally, we are developing innovative analytical approaches based on machine learning for ARPES data analysis.
Measurement informatics for autonomous experiments
In today's era of data-driven research, the ability to efficiently collect and analyze large volumes of experimental data is a critical factor for success. To address this challenge, we are investigating cutting-edge measurement informatics methodologies that leverage machine learning and artificial intelligence technologies to streamline and automate the measurement and analysis of diverse synchrotron radiation experimental techniques, including X-ray absorption spectroscopy and X-ray magnetic circular dichroism spectroscopy.
Members
| IWASAWA Hideaki | Project Leader (Senior Principal Researcher, Synchrotron Radiation Research Center) | Sendai |
|---|---|---|
| UENO Tetsuro | Co-person (Principal Researcher, Synchrotron Radiation Research Center) | Harima |
| LI Songtian | Co-person (Principal Researcher, Quantum Materials and Applications Research Center) | Takasaki |
| KATAYAMA Yoshinori | Co-person (Deputy Director, Synchrotron Radiation Research Center) | Harima |
Original papers
- Hideaki Iwasawa, Tetsuro Ueno, Yoshiyuki Yoshida, Hiroshi Eisaki, Yoshihiro Aiura, and Kenya Shimada, Quantitative measure of correlation strength among intertwined many-body interactions, Physical Review Research 5, 043266 (2023).
- Norihiro Oshime, Kenji Ohwada, Akihiko Machida, Nagise Fukushima, Kosuke Shirakawa, Shintaro Ueno, Ichiro Fujii, Satoshi Wada, Kento Sugawara, Ayumu Shimada, Tetsuro Ueno, Tetsu Watanuki, Kenji Ishii, Hidenori Toyokawa, Koichi Momma, Sangwook Kim, Shinya Tsukada, Yoshihiro Kuroiwa, Lattice strain visualization inside a 400 nm single grain of BaTiO3 in polycrystalline ceramics by Bragg coherent X-ray diffraction imaging, Japanese Journal of Applied Physics 62, SM1022 (2023).
- Hideaki Iwasawa, Kazuki Sumida, Shigeyuki Ishida, Patrick Le Fèvre, François Bertran, Yoshiyuki Yoshida, Hiroshi Eisaki, Andrés F. Santander-Syro, and Taichi Okuda, Exploring spin-polarization in Bi-based high-Tc cuprates, Scientific Reports 13, 13451 (2023).
Reviews
- Tetsuro Ueno and Hideaki Iwasawa, Measurement Informatics in Synchrotron Radiation X-ray Spectroscopy, Synchrotron Radiation News 35, 3 (2022).
Books
- In preparation
Experimental facilities
- In preperation
Funding
- JST PRESTO (FY2023–2026) (H. Iwasawa)
- Acquisition Technology & Logistics Agency, Commissioned research (FY2023–2025) (H. Iwasawa)
- JSPS KAKENHI Grant No. 22K04915 (FY2022–2024) (T. Ueno)
Address
Sendai site: International Center for Synchrotron Radiation Innovation Smart Building, Tohoku University, 468-1 Aramaki Aoba, Aoba-ku, Sendai, 980-8572 Japan
Harima site: Synchrotron Radiation Research Center, Kansai Institute for Photon Science, National Institutes for Quantum Science and Technology, 1-1-1 Koto, Sayo, 679-5148 Japan (Located in SPring-8 Campus)
Takasaki site: Quantum Materials and Applications Research Center, Takasaki Institute for Advanced Quantum Science, National Institutes for Quantum Science and Technology, 1233 Watanukimachi, Takasaki, 370-1292 Japan