Review: Recent Progress on the Application of REBCO Superconductor Bulks

The high temperature superconducting REBa2Cu3O7-x (REBCO) bulk with a diameter of only a few centimeters can trap a tesla-level magnetic field at a moderate temperature. The high magnetic field in such a compact structure makes the REBCO bulk magnet widely applicable in many scenarios, such as in motor, generator, and bearing for flywheel. This review focuses on some research areas using the REBCO bulk magnet, which is quite interesting but has attracted little attention, including magnet lens, compact NMR, magnetron sputtering system, drug magnetic targeting system, magnetic separation, and magnetic mirror. In all of these areas, the REBCO bulk magnet shows its own advantages of having a high magnetic field but a small size to improve the final function.