The Chinese broke the record for the strongest permanent magnetic field
Tens of thousands of times stronger than fridge magnets
A hybrid magnet at the Chinese Academy of Sciences that has been in development for years has managed to break the world record for the strongest permanent magnetic field (SHMFF). In particular, SHMFF managed to produce a magnetic field of 45.22 tesla, surpassing the 45 tesla of the US MagLab that held the record since 1999.
Thus, it sets new limits on the conditions required to study various natural phenomena, offering new opportunities for research and innovation.
These types of magnets use two ways to produce a magnetic field. An outer superconducting ring and a Bitter type permanent magnet. The first mode has small energy needs but an upper limit on field strength, while Bitter requires much more energy.
By combining the two technologies, the limitations are significantly lifted, allowing the production of a powerful, stable magnetic field.
To achieve a larger magnetic field, we innovated the structure of the magnet and developed new materials. The manufacturing process of Bitter discs was also improved.
45.22 tesla was produced using just 26.9 megawatts.
The SHMFF hybrid magnet produces the world’s strongest stable magnetic field, which improves experimental conditions for scientists performing materials science experiments and will play a key role in research on low-power electronic materials and other fields. As the strength of the magnetic field produced by the hybrid magnet increases, the availability and level of service will also improve.