【科技日报】35.6特斯拉全超导磁体研制成功

Core Viewpoint - Chinese researchers have successfully developed a fully superconducting user magnet with a central magnetic field of 35.6 teslas, breaking the previous world record of 32 teslas set by the National High Magnetic Field Laboratory in the United States, significantly enhancing China's capabilities in strong magnetic field material science research [1][2]. Group 1: Technological Achievements - The newly developed magnet is the only fully superconducting user experimental magnet capable of providing magnetic fields above 30 teslas, which is over 700,000 times stronger than the Earth's magnetic field [1]. - The development of the superconducting magnet involved overcoming significant engineering challenges related to magnetic field strength, stability, and uniformity, as well as issues with the anisotropic nature and precision control of high-temperature superconducting materials [1][2]. Group 2: Collaborative Efforts - The collaboration between the Institute of Electrical Engineering and the Institute of Physics of the Chinese Academy of Sciences led to key technological breakthroughs in magnet design, construction, and precision measurement under extreme conditions [2]. - The user magnet will support researchers in exploring the laws of the microscopic world and advancing fundamental research and high-end equipment manufacturing [2]. Group 3: Cost and Accessibility - The operational cost of the fully superconducting magnet is significantly lower than that of traditional resistive magnets due to its zero-resistance feature [2]. - The magnet has a usable aperture of 35 millimeters, making it suitable for a wide range of experimental needs, including nuclear magnetic resonance and material specific heat measurements [2]. Group 4: Future Goals - The research teams aim to continue their collaboration to achieve magnetic fields of 40 teslas and beyond, while also working on expanding the magnet's aperture and reducing operational costs [2].