Yoshimatsu Laboratory
Last update: August 11, 2026.
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!
Fiscal year 2026
August 11, 2026:
A paper on CuFeO₂ thin films by Kinoshita (M.S. graduate, FY2025) was published in Crystal Growth & Design.
August 7, 2026:
Institute of Science Tokyo held an online Open Campus event, where Yoshimatsu participated as a panelist in a consultation session for prospective students interested in the School of Materials Science and Chemistry.
August 6, 2026:
At the 2026 Autumn Meeting of the Japan Society of Applied Physics, Kanno (M2) will give an Award Lecture for the JSAP Young Scientist Presentation Award, while Fujiwara (M1) will give an oral presentation. In addition, four collaborative research projects will be presented.
July 6, 2026: Our paper on (AlxScyGa1-x-y)2O3 thin films was published in Applied Physics Letters.
June 26, 2026:
Our research proposal was selected for a JSPS KAKENHI Grant-in-Aid for Challenging Research (Exploratory). The two-year project is supported by a research grant of 5 million yen.
June 5–8, 2026:
Yoshimatsu and Kanno (M2) conducted synchrotron X-ray diffraction experiments at BL-4C of KEK-PF.
May 20, 2026:
Kanno (M2) received the JSAP Young Scientist Presentation Award for his presentation at the 2026 Spring Meeting of the Japan Society of Applied Physics.
April 24–26, 2026:
Yoshimatsu attended the 7th Area Meeting of the Grant-in-Aid for Transformative Research Areas (A) “1000-Tesla Science” in Himeji and gave presentations.
April 1, 2026:
Our research proposal was selected as a publicly offered research project of the Grant-in-Aid for Transformative Research Areas (A) “1000-Tesla Science.” The two-year project, starting in April 2026, is supported by a research grant of 4 million yen.
April 1, 2026:
Our group members have been updated.
2026 Lectures in charge
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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)
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" （FY2025-FY2028）
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Grant-in-Aid for Transformative Research Areas (A), Publicly Offered Research “Phase-Transition Mechanism of λ-Ti₃O₅ Unveiled by High Magnetic Fields” (FY2026–FY2027)
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Grant-in-Aid for Challenging Research (Exploratory) “Development of Novel Synthetic Routes for Inorganic Thin Films Inspired by Organic Chemistry” (FY2026–FY2027)
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Amano Institute of Technology, Public Interest Foundation (FY2025-FY2026)
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Tokuyama Science Foundation (FY2026–FY2027)
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.