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Kokubo Lab
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A lab that uses superconductivity to visualize magnetic fields and heat at the nanoscale.

AboutAbout the lab
Seeing the nano world through the power of superconductivity.
The Kokubo Lab searches for new solid-state properties through real-space measurements using superconducting thermal and magnetic microscopes.
The lab develops superconducting sensors that detect extremely weak magnetic fields and heat, and low-temperature thermal and magnetic microscopes that use them.
With these microscopes, the lab investigates the frictional dynamics of magnetic flux quanta (vortices) and unusual low-dimensional electronic properties.
Key terms
- Superconductivity
- A phenomenon characterized by perfect conductivity, in which electrical resistance drops to zero, and perfect diamagnetism, in which magnetic fields are expelled
- Superconducting quantum interference device (SQUID)
- A device that makes use of superconductivity. It is used as a sensor to detect extremely weak magnetic fields and heat
- Quantum mechanics
- The physical theory governing the microscopic world of atoms and electrons. It describes phenomena in which particle-like and wave-like properties coexist
ResearchResearch themes
In the nanoscale world, strange phenomena described by quantum mechanics appear, in which particle-like and wave-like properties coexist. The lab develops superconducting sensors for weak magnetic fields and heat, turns them into microscopes, and explores new solid-state properties through real-space measurements.
View More ↗MembersFaculty
The Kokubo Lab consists of faculty members and master's and undergraduate students.As of 2026
- Associate ProfessorNobuhito Kokubo
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: “Superconductor vortex effect on a ferrofluid” Julien Bobroff (user:Jubobroff), Frederic Bouquet (user:Fbouquet), LPS, Orsay, France / CC BY-SA 3.0 (cropped)
- Nano-SQUIDs and superconducting thermal and magnetic microscopes: “Magma C30 System” Janolaf30 / Public domain (cropped)
- Related lab (山北 佳宏 研究室): “X-ray Photoelectron Spectroscopy system based on JEOL-4610” Minovich / CC BY-SA 4.0 (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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