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Yamakita Lab
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A lab that investigates the electrons and reactions of molecular aggregates using instruments it builds itself.

AboutAbout the lab
Understanding the electronic states of functional materials through advanced measurement, and developing professionals who can put their own technology to use
The Quantum Physical Chemistry Lab (Yamakita Lab) studies the gas-phase synthesis and reactions of molecular aggregates that underlie molecular machines and quantum dots.
Using techniques like those used in molecular beam epitaxy, the lab explores the structure and reaction mechanisms of the particles that serve as the building blocks of bulk materials.
Instruments are built in-house based on calculations, so students gain hands-on experience in sample analysis, electronics, vacuum equipment, and programming.
After students are assigned to the lab as fourth-year undergraduates, the whole lab supports them in acquiring specialist knowledge and know-how.
Key terms
- Gas phase
- The gaseous state. In a vacuum, molecules become isolated systems cut off from the outside environment, making it possible to study systems that cannot be observed in the atmosphere
- Metal molecular cluster
- A particle in which a metal is bonded to other molecules. It can serve as a model of molecules adsorbed on metal surfaces and of metal complexes
- Ion imaging spectroscopy
- An experimental technique that simultaneously measures the arrival time and position of ions on a detector surface. It reveals the direction and energy of particles broken apart by light
- Nanocarbon
- A general name for allotropes of carbon such as fullerenes, carbon nanotubes, and graphene
ResearchResearch themes
The lab creates molecular aggregates in the gas phase and makes them react, exploring the structure and reaction mechanisms of the particles that serve as the building blocks of bulk materials. Using home-built instruments and programs, it studies electronic states and reactions induced by light.
*Illustrative imageSurface Electrons of Molecules Probed by Atomic Collisions
When excited helium atoms collide with molecules, electrons are ejected, and their speeds reveal the molecule's surface electrons and structure. The lab builds its own ultra-high-sensitivity instrument that uses the magnetic bottle effect to measure these electrons.
*Illustrative imageLight-Induced Fragmentation of Molecular Clusters
The lab irradiates metal molecular cluster ions with a laser and studies the reactions in which they break apart under light, using ion imaging spectroscopy. Only the molecules of interest can be selected and observed, revealing the energy and flight direction of the resulting fragments.
*Illustrative imageElectronic and Vibrational States of Nanocarbons
Focusing on carbon networks relevant to organic electronics, the lab develops highly efficient programs to predict a variety of physical properties. It investigates the electronic and vibrational states of polycyclic aromatic hydrocarbons and nanocarbons.
MembersFaculty
The members of the Quantum Physical Chemistry Lab are a Professor and master's and undergraduate students.As of 2026
- ProfessorYoshihiro Yamakita
VoicesStudent voices
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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: “X-ray Photoelectron Spectroscopy system based on JEOL-4610” Minovich / CC BY-SA 4.0 (cropped)
- Surface Electrons of Molecules Probed by Atomic Collisions: “Laboratory of electron spectroscopy” Dominik Bejma, Marta Kowalkińska / CC BY 4.0 (cropped)
- Light-Induced Fragmentation of Molecular Clusters: “Iscosahedral water cluster 100” Danski14 / CC BY-SA 3.0 (cropped)
- Electronic and Vibrational States of Nanocarbons: “Graphen” AlexanderAlUS / CC BY-SA 3.0 (cropped)
- Related lab (小久保 伸人 研究室): “Superconductor vortex effect on a ferrofluid” Julien Bobroff (user:Jubobroff), Frederic Bouquet (user:Fbouquet), LPS, Orsay, France / CC BY-SA 3.0 (cropped)
- Related lab (佐々
木 成朗 研究室): “أنابيب نانوية كربونية (Carbon nanotube)” Amira Ben Gouider Trabelsi / CC BY-SA 4.0 (cropped) - Related lab (中村 淳・新𠮷 直樹 研究室): “DV74HC4051 CMOS 1996 (01)” Retired electrician / CC0 (cropped)
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