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Kohama Lab
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A lab that explores the properties of matter in ultra-high magnetic fields of up to 1000 tesla.
AboutAbout the lab
Unraveling physics in extreme magnetic fields.
The Kohama Lab uses pulsed magnetic fields to study the properties that materials show in very strong magnetic fields.
The high-field regime is an unexplored area where much remains unknown even in present-day physics.
The lab makes full use of techniques such as neutron diffraction, nuclear magnetic resonance, optical measurements, electrical resistivity measurements, and thermal measurements.
Its research targets both materials in which electrons stay localized around atoms and materials in which electrons move around freely through the material.
Key terms
- Pulsed magnetic field
- A method of generating a very strong magnetic field for only a very short time. It can reach fields stronger than those that can be produced continuously.
- Nuclear magnetic resonance
- A phenomenon in which atomic nuclei in a magnetic field absorb radio waves of a specific frequency. It is used to probe the inner state of a material.
- Frustrated magnet
- A material in which the arrangement of the atoms prevents all the magnetic moments from aligning in the same direction. Unusual states tend to appear in such materials.
NewsLab news
A master's student won a Poster Award (Silver Award) at the 7th Area Meeting of 1000 Tesla Science
A student won the Best Presentation Award at the ISSP Student Presentation Competition 2025
A student won a Poster Award (Bronze Award) at an international conference
ResearchResearch themes
Because a magnetic field acts directly on electrons, every material is affected by it. The Kohama Lab uses pulsed magnetic fields, which produce an intense field for only an instant, in experiments on material properties, and advances condensed matter physics research in ultra-high magnetic fields of up to 1000 tesla.
*Illustrative imageCondensed Matter Physics Research in Ultra-High Pulsed Magnetic Fields
The lab investigates material properties in pulsed magnetic fields of up to 1000 tesla, far beyond the upper limit of continuously generated fields (45 tesla). It also conducts research using the strongest indoor magnetic field in the world, successfully generated by the Institute for Solid State Physics (ISSP) at the University of Tokyo.
*Illustrative imagePrecision Measurements in Pulsed Magnetic Fields
The lab develops techniques for measuring material properties that were previously not possible in pulsed magnetic fields. As a member of the International Mega-Gauss Science Laboratory, it both competes and collaborates with high-field facilities around the world to make measurements such as specific heat, NMR, and electrical resistance possible in high magnetic fields.
*Illustrative imageNew Phenomena Opened Up by High Magnetic Fields
Targeting materials that show unusual behavior in strong magnetic fields, such as high-temperature superconductors and frustrated magnets, the lab aims to discover new quantum phases and phenomena.
MembersFaculty
The members of the Kohama Lab consist of faculty, project researchers, researchers, doctoral and master's students, research interns, and a secretary.As of 2026
- Associate ProfessorYoshimitsu KohamaPublications ↗
- Assistant ProfessorMasaki Gen
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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.
- Top image: “Jet Propulsion Laboratory 100 Kilogauss Magnet kmagnet-600” NASA / Public domain (cropped)
- Condensed Matter Physics Research in Ultra-High Pulsed Magnetic Fields: “Bitter electromagnet disk” PeterFrankfurt / CC0 (cropped)
- Precision Measurements in Pulsed Magnetic Fields: “Dewar Quantum Setup” OJB Quantum / CC BY 4.0 (cropped)
- New Phenomena Opened Up by High Magnetic Fields: “YBCO-unit-cell-3D-balls” Ben Mills / Public domain (cropped)
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