SUPERCONDUCTOR WITH IMPROVED FLUX PINNING AT LOW TEMPERATURES

摘要

A REBCO superconductor tape that can achieve a lift factor greater than or equal to approximately 3.0 or 4.0 in an approximately 3 T magnetic field applied perpendicular to a REBCO tape at approximately 30 K. In an embodiment, the REBCO superconductor tape can include a critical current density less than or equal to approximately 4.2 MA/cm² at 77 K in the absence of an external magnetic field. In another embodiment, the REBCO superconductor tape can include a critical current density greater than or equal to approximately 12 MA/cm² at approximately 30 K in a magnetic field of approximately 3T having an orientation parallel to a c-axis.