日本超导工学研究所使用钇系超导体,在31K、35T的超高磁场下达到了220000A的临界电流密度。 该研究所使用由独自开发的MPMG(控制熔融)法制备的试料制成的钇系超导体,曾预料其在高磁场中具有高的电流密度,经用东京大学物性研究所的三浦登教授等所开发的超高磁场发生装置进行测量,首次实际测量成功,而且,在77K、10T的条件下也显示出24000A的电流密度,刷新了在液氮温度区域内的记录。 Japan Institute of Superconductivity Institute of yttrium-based superconductors, 31K, 35T ultra-high magnetic field reached 220,000 A critical current density. The Institute uses yttrium-based superconductors made from a sample prepared by the MPMG (controlled melting) method, which was developed by itself, and was expected to have a high current density in a high magnetic field by the application of Professor Miura Deng of the Institute of Physical Properties, University of Tokyo The developed ultra-high magnetic field device was measured for the first time and was measured successfully at 77K with a current of 24000A at 10T, refreshing the recording in the liquid nitrogen temperature range.