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Matsuda Lab
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The lab uses synchrotron radiation and X-ray lasers to probe the electrons and spins on solid surfaces.
AboutAbout the lab
Tracking the motion of surface electrons with light and X-rays
The Matsuda Lab uses solid surfaces as its stage to study the electronic structure and spin properties of low-dimensional electronic phases and magnetic phases.
The lab directly determines the state of electrons in materials using spin-resolved and angle-resolved photoemission spectroscopy.
By combining soft X-ray pulses from high-brightness synchrotron radiation, ultrashort-pulse lasers, and X-ray free-electron lasers, the lab also tracks the ultrafast dynamics of electrons and spins.
In collaboration with chemistry labs, the lab also studies the motion of atoms and molecules in photocatalytic reactions.
Key terms
- Photoemission spectroscopy
- A method that shines light on a material and measures the energy and direction of the electrons that are emitted, in order to investigate the state of electrons inside the material
- Synchrotron radiation
- Extremely bright light emitted when electrons accelerated to nearly the speed of light are bent. It covers a wide range of wavelengths, up to X-rays
- X-ray free-electron laser
- X-rays produced by an accelerator as very short pulses that are intense like a laser
NewsLab news
A postdoctoral researcher received the Best Poster Award at the 23rd International Symposium on Boron, Borides and Related Materials
A PhD student received the Women Researcher Award (Outstanding Young Female Graduate Student Award) from the Japan Society of Vacuum and Surface Science
A PhD student received the Academic Meeting Presentation Encouragement Award (Student Category) from the Japan Society of Vacuum and Surface Science
Prof. Matsuda received the Japan Boron and Borides Research Society Award
AI automatically analyzes X-ray spectra to identify the structure, defects, and electronic states of materials (press release)
ResearchResearch themes
The lab studies how the electronic structures of new low-dimensional phases, topological phases, and magnetic phases that form on solid surfaces behave, both in static states and in dynamic states. It is also developing new X-ray spectroscopy methods that use synchrotron radiation and X-ray lasers.
*Illustrative imageObserving materials in situ with X-rays
The lab develops spectroscopic measurement techniques that use vacuum ultraviolet to soft X-rays from high-brightness synchrotron radiation and X-ray lasers, and observes changes in materials in situ while they are operating. It has made photoemission spectroscopy possible under conditions ranging from ultra-high vacuum to atmospheric pressure, and is also advancing the introduction of AI and robotics technology.
*Illustrative imageSynthesizing new monolayer materials
The lab synthesizes new monolayer materials with Dirac electron systems, such as borophene, as well as two-dimensional metal-compound sheets, and tracks the motion of carriers and spins within them.
MembersFaculty
Members of the Matsuda Lab include faculty, postdocs, project researchers, professors emeritus, research fellows, PhD and master's students, research students and visiting students, and secretaries and academic specialist staff.As of 2026
- ProfessorIwao MatsudaPublications ↗
- Assistant ProfessorMasafumi Horio
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “SXR beamline - Experimental end of the world’s brightest X-ray Laser, generated by the Linear Accelerator at SLAC” Steve Jurvetson from Menlo Park, USA / CC BY 2.0 (cropped)
- Observing materials in situ with X-rays: “TXPES beamline at SESAME” Erkcan / CC BY-SA 4.0 (cropped)
- Synthesizing new monolayer materials: “Boron” Jurii / CC BY 3.0 (cropped)
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