China has created a magnetic field 700 thousand times stronger than the Earth's

China's breakthrough: a new record of magnetic field exceeds the Earth's by 700 thousand times

Chinese scientists have announced a record-breaking result in the field of plasma physics: researchers from the Institute of Plasma Physics of the Chinese Academy of Sciences (ASIPP) have generated a constant magnetic field with a voltage of 35.1 tesla (T), which is ~700,000 times stronger than the Earth's magnetic field (approximately 0.00005 T).

This record not only surpasses the previous best of 32.35 Tl, but also demonstrates China's significant progress in developing modern superconducting technologies.

How we did it

The researchers used complex superconducting structures: they used high temperature superconducting insert coils together with low-temperature superconductors. This made it possible to maintain the stability of the magnet in extreme conditions - without loss of performance.

They faced technical challenges: the effects of shielding currents, multipole connections in complex circuits, and the issue of voltage and pressure concentration in a low-temperature environment. But the new design proved stable enough to operate for 30 minutes at full load.

After the test, the magnet was demagnetised, which confirmed the reliability of the method.

What it means: potential applications

The achievement has important prospects for scientific and applied technologies:

• Promotes the development of superconducting devices - in particular for nuclear magnetic resonance (NMR), used in medical imaging and chemical analysis.

• Helps to create effective magnetic deposits for fusion, where strong fields are required to retain the plasma.

• Can be used in electromagnetic launch, magnetic levitation (maglev), The company's expertise includes superconducting induction heating and energy transmission systems.

• Makes China less dependent on imports of critical superconducting materials.

Context and meaning

The ASIPP Institute has long been cooperating with international projects, including ITER (International Thermonuclear Experimental Reactor). China is now localising the production of key components: superconductors, coils and power magnets.

This technological independence is of strategic importance: in the global competition for future energy sources, magnetic technology is becoming one of the key factors.