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Applied Superconductivity Lab
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The lab applies zero-resistance superconductivity to medicine and electric power.
AboutAbout the lab
Putting zero electrical resistance to work.
The Applied Superconductivity Lab studies how to apply superconductivity, in which electrical resistance drops to zero, to a wide range of fields.
Superconducting wires can transmit electricity without loss, and they can carry far more current than copper wires of the same thickness, producing strong magnetic fields.
The lab clarifies the invisible electromagnetic phenomena that occur inside superconducting materials and uses that understanding to design devices.
The work proceeds through both experimental evaluation and large-scale simulations on a dedicated computer server.
Key terms
- Superconductivity
- A phenomenon in which electrical resistance suddenly drops to zero below a certain temperature. It can also be used in electromagnets that produce strong magnetic fields.
- High-temperature superconductor
- A material that becomes superconducting at relatively high temperatures, such as the temperature of liquid nitrogen.
- Superconducting fault current limiter
- A device that suppresses current when an excessively large current flows because of a fault, by using the property that superconductivity breaks down.
NewsLab news
Paper by Prof. Amemiya and colleagues published in IEEE Transactions on Applied Superconductivity
Paper by Prof. Amemiya and colleagues published in Superconductor Science and Technology
Paper by Assistant Professor Sogabe and colleagues published in IEEE Transactions on Applied Superconductivity
ResearchResearch themes
By making good use of the advantages of superconductivity, namely zero electrical resistance and the ability to generate strong magnetic fields, new technologies can be created in many areas of electrical engineering. Building on the elucidation of the invisible electromagnetic phenomena inside superconducting materials and the electromagnetic properties that result from them, the lab conducts research toward applications.
*Illustrative imageTreating cancer with heavy ion beams
Heavy ion beam cancer therapy is a form of radiation therapy that uses carbon ions accelerated to high speed. To make this treatment more widespread, the lab is carrying out industry-academia collaborative research on using superconducting magnets to make the equipment more capable and more compact.
*Illustrative imageToward MRI that can be installed anywhere
Magnets in current MRI systems use low-temperature superconductors. If these can be replaced with high-temperature superconductors, MRI systems that are easy to use and can be installed anywhere become possible.
*Illustrative imageSuperconductivity for both power transmission and generation
Making power transmission cables and generators superconducting greatly reduces losses and raises efficiency. Through superconducting fault current limiters and light, large generators for wind turbines, the research can contribute to expanding the adoption of renewable energy.
*Illustrative imageReducing the radiotoxicity of nuclear waste
An accelerator-driven transmutation system (ADS) uses an accelerator to reduce the radiotoxicity of nuclear waste. Toward realizing it, the lab is researching high-temperature superconducting magnets for an unprecedented type of circular accelerator.
MembersFaculty
The members of the Applied Superconductivity Lab consist of faculty, researchers, technical assistants, secretaries, doctoral and master's students, and undergraduate students.As of 2026
- ProfessorNaoyuki Amemiya
- Associate ProfessorYusuke Sogabe
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: “Levitation superconductivity” Julien Bobroff, Frederic Bouquet, LPS, Orsay, France / CC BY-SA 3.0 (cropped)
- Treating cancer with heavy ion beams: “Aerial view of Synchrotron SOLEIL” Communication Synchrotron SOLEIL / CC BY-SA 4.0 (cropped)
- Toward MRI that can be installed anywhere: “CDC PHIL 10148 – candling, fertilized egg, non-viable” CDC / Dr. Joseph McDade / Public domain (cropped)
- Superconductivity for both power transmission and generation: “Sunset with Power Lines ( )” Eric Sonstroem from California, USA / CC BY 2.0 (cropped)
- Reducing the radiotoxicity of nuclear waste: “Uraninite w11” Weirdmeister / CC BY-SA 4.0 (cropped)
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