In joint research with the University of Tokyo, Tokyo Institute of Technology, and Hiroshima University, we discovered that a solid made of palladium and bismuth becomes a special superconducting state.It will propose a new guideline in the study of the special superconducting state realized by electrons moving around in the two-dimensional world, which has been attracting attention in recent years.

 Solids can have very different properties on the surface and inside, which is one of the important research subjects in solid-state physics.Among them, the superconducting phenomenon that occurs on the surface has been attracting attention in recent years.Electrons moving in the two-dimensional world of the surface of a solid can create a special superconducting state not found in three dimensions.At this time, it has been pointed out that Majorana particles, which are still unidentified particles, may have been created.It is expected that by utilizing the properties of Majorana fermions, it will be possible to create electronic devices with completely new functions that have never been seen before.To realize these special superconductors, the research group focused on superconductors composed of palladium and bismuth.We have succeeded in producing high-quality crystals and confirming that a special superconducting state is formed on the surface.In the superconducting phenomenon on the solid surface, which is preceded by theoretical research, it is now possible to proceed with experimental research.

 This time, we couldn't do the experiment at the extremely low temperature necessary to investigate the superconducting state in detail, so we will continue to make such measurements.Depending on future research, it may open the way to demonstrate the existence of Majorana particles and even to apply them to completely new electronic devices.

Source:[Hiroshima University] Discovery of new superconducting materials with topological electronic structure-New guidelines for searching for new topological materials-

Tokyo University

Established in the 10th year of the Meiji era.A university with the longest history in Japan and at the forefront of Japanese knowledge

The University of Tokyo was established in 1877 (Meiji 10) by integrating the Tokyo Kaisei School and the Tokyo Medical School.Since its establishment, it has developed education and research in a unique way in the world as a leading university in Japan and an academic center for the fusion of East and West cultures.As a result, many human resources have been produced in a wide range of fields, and many research achievements […]

Tokyo Institute of Technology

The pinnacle of science and engineering university that continues to produce science and engineering people with high aspirations and a Japanese spirit, mastering the knowledge that creates the times, refining their skills

Tokyo Institute of Technology was established as the Tokyo Institute of Technology in 1881 (Meiji 14), when modernization of industry was an urgent need.Since its establishment, it has continued to produce excellent research results with excellent science and engineering human resources, and is still at the top of Japan's science and engineering universities.Tokyo Institute of Technology requires not only a high degree of specialization but also liberal arts […]

Hiroshima University

Learning to design your own life.To the world's top 100 universities that create knowledge

Under the five principles of "spirit of seeking peace," "creation of new knowledge," "education that cultivates abundant humanity," "coexistence with local and international communities," and "continuous self-transformation," 5 faculties and 12 studies A comprehensive research university with a department.While promoting university reform with both educational and research capabilities, we will continuously produce global human resources and gain knowledge […]

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