Nano Frontier Superconducting Materials Group
Since superconductors can transport energy without loss, it is expected that superconductivity is a key solution technology to energy problems. We are focusing on the physical properties of Fe-based superconductors, diamond superconductors, high-Tc superconductors and carbon nanotubes. We have developed a superconducting wire using newly discovered superconducting materials. Development of novel devices, including optical and field effect devices, using superconductors and nano-technologies are targets.
Specialized Research Field
Since superconductors can transport electric energy without loss at zero resistance, it is expected to be one of the promising materials for solving environmental energy problems. We have been focusing on the basic physical properties of iron-based superconductors, diamond superconductors, high-temperature superconductors, carbon nanotubes, etc. We are also developing superconducting wires using new superconducting materials. Recently, we are trying to search for the new substances by machine learning using material databases, and are discovering new superconductors one after another, aiming to discover room temperature superconductors. We are also working on new magnetic refrigeration materials to be incorporated in magnetic refrigeration equipment for highly efficient hydrogen liquefaction, and here again, we narrowed down candidate substances by machine learning and combined the experience of researchers to search for new substances.
1. Iron-based superconductor and novel superconductor

Fig 1. Crystal structure of FeTe new superconductor.

Fig.2. Resistivity properties of Fe(Te,S) superconductor.
2. Development of electrode patterned diamond anvil for ultrahigh pressure with voltage electrical resistance measurement device and search for new superconductors using material informatics

Fig. 3. Development of electrode patterned diamond anvil for ultrahigh pressure with voltage electrical resistance measurement device and search for new superconductors using material informatics.
(2) Successful generation of ultra high pressure of 100 GPa or higher
(3)Discovery of new superconductors by machine learning
3. Development of high-performance magnetic refrigeration materials for hydrogen liquefaction

Fig. 4. Basic physical properties such as magnetic transitions and entropy changes of HoB2 material with the highest performance in the world.
Group Leader

(*Open in new window) Yoshihiko TAKANO
Group Member
Group Member
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- Nano Frontier Superconducting Materials Group
- 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047 JAPAN