Yoshimatsu Laboratory
Last update 2025. 12.23
Yoshimatsu Laboratory
Department of Chemical Science and Engineering,
Institute of Science Tokyo
Laboratory Group Photo in 2025
Our laboratory was established in August 2023 and is part of the Department of Applied Chemistry, School of Materials and Chemical Technology, Institute of Science Tokyo. We utilize thin-film technology to create new electronic and energy devices that take advantage of the characteristics of transition-metal oxides. Furthermore, we utilize cutting-edge synchrotron radiation measurement technology of electron spectroscopy and x-ray diffraction to conduct fundamental material science research.
We are currently recruiting students for bachelor's, master's, and doctoral programs. For more information, please click here.
What's new!
Fisical year 2025
December 17th
Associate Professor Daichi Oka of Tokyo Metropolitan University gave us intensive lecture #3 (Chemical Science and Engineering Topics II), after which we had a party in the lab.
December 11th
Kinoshita (M2) gave an oral presentation at MRM2025.
December 3rd
Associate Professor Daichi Oka of Tokyo Metropolitan University gave us intensive lectures #1 & 2 (Chemical Science and Engineering Topics II). Everyone in the lab attended the lecture.
December 1st
Kanno (M1) and Zhou (M1) gave their intermediate master's thesis presentations.
November 28th
Kinoshita (M2) won the Excellent Poster Presentation Award at CSJ Chemistry Festa 2025.
November 14-17th
We conducted synchrotron four-circle X-ray diffraction experiments at BL-4C of KEK-PF.
October 24th
Kinoshita (M2) gave a poster presentation at CSJ Chemistry Festa 2025.
October 17th
We conducted synchrotron 2D X-ray diffraction experiments at BL-8A of KEK-PF.
October 1st
Members and lectures have been updated.
September 11-12th
Yoshimatsu gave an invited lecture at the summer school of the research group on ferroic-ordering and their manipulation.
September 7-11th
Yoshimatsu and Kanno (M1) gave oral presentations at the 86th Autumn Meeting of the Japan Society of Applied Physics in Nagoya. Six other collaborative research presentations were also given. The related program is here.
September 5th
A project was selected for a research grant from the Amano Institute of Technology, Public Interest Foundation. The project will cover a two-year research period with a budget of 5 million yen.
Lectures in charge (scheduled for 2026)
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XMC.A101: Materials Science and Engineering Literacy (1Q, Undergraduate, Shared)
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CAP.H205: Quantum Chemistry 1 (Quantum Mechanics) (1Q, Undergraduate, Sole)
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CAP.H206: Quantum Chemistry 2 (Molecular Orbital) (2Q, Undergraduate, Sole)
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CAP.Z381: Research Project (3Q, Undergraduate, Shared)
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CAP.Q308: Chemical Science and Engineering Topics II (4Q, Undergraduate, Shared)
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CAP.F201: Applied Chemistry Experiments 1: Fundamentals of Chemistry Experiments (1-2Q, Undergraduate, Shared)
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CAP.A302: Applied Chemistry Experiment 4: Basic Electrochemistry (3-4Q, Undergraduate, Shared)
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CAP.A467: Advanced electronic structures in solids I (3Q, Graduate, English, Sole)
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CAP.A468: Advanced electronic structures in solids II (4Q, Graduate, English, Sole)
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CAP.T414: Advanced Functional Physical Properties II (3Q, Graduate, Japanese, Shared)
Lectures in charge (2025)
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CAP.Q308: Chemical Science and Engineering Topics II (4Q, Undergraduate, Shared)
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CAP.Z381: Research Project (3Q, Undergraduate, Shared)
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CAP.F201: Applied Chemistry Experiments 1: Fundamentals of Chemistry Experiments (1-2Q, Undergraduate, Shared)
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CAP.A302: Applied Chemistry Experiment 4: Basic Electrochemistry (3-4Q, Undergraduate, Shared, Deputy responsible teacher)
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CAP.A467: Advanced electronic structures in solids I (3Q, Graduate, English, Sole)
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CAP.A468: Advanced electronic structures in solids II (4Q, Graduate, English, Sole)
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CAP.T414: Advanced Functional Physical Properties II (3Q, Graduate, Japanese, Shared)
Research grant (in progress)
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Grant-in-Aid for Scientific Research (B) 「Unveiling photo-induced phase transition phenomena of metastable titanates using single-crystalline films and creating phase change memory」 （2025-2028）
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Grant-in-Aid for Scientific Research (B) 「Unveiling optical and electronic properties of new metastable titanium oxide that shows multiple phase transitions」(2022~2024)
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Amano Institute of Technology, Public Interest Foundation (2025-2026)
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Casio Science Promotion Foundation (2024-2025)
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Foundation for Promotion of Material Science and Technology of Japan (2024-2025)
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Thermal & Electric Energy Technology Foundation (2023-2025)
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JFE 21st Century Foundation (2023-2025)
Would you like to conduct joint research?
Our laboratory possesses precision technology of thin-film synthesis for transition-metal oxides, primarily titanium oxide, using pulsed-laser deposition, microfabrication technology, and electrical properties measurement technology in the ultra-low to high temperature range.
We also perform crystal- and electronic-structure analyzes using X-ray diffraction, photoelectron spectroscopy and X-ray absorption spectroscopy at the synchrotron radiation facilities of PF and SPring-8. We also perform electronic-structure calculations using density functional theory to deepen our understanding of the experimental data obtained from synchrotron radiation experiments.
Deep understanding of materials can be achieved by consistently conducting thin film synthesis, microfabrication, physical property evaluation, advanced measurement, and theoretical calculations. This will lead to the creation of new devices that maximize the potential of materials.
For more details on the research, please click here.
Our laboratory is also engaged in the design and construction of experimental equipments. Creating new materials and new principles requires originality in the synthesis and measurement equipments that produces them.
From the pulsed-laser deposition system, which is the main research equipment, to various measurement apparatus, we have implemented unique innovations in both hardware and software. Designing and manufacturing the equipment requires a detailed understanding of the specifications and operating principles. By not treating the experimental equipment as a black box, and by understanding its strengths and weaknesses, we can gain a deeper understanding of the results.
Our experimental equipments are here.
We are looking for collaborative research and development with university laboratories and companies alike. If you are interested, please contact us here or via an inquiry form.