Abstract
Crystalline defects on the nano-scale, which are called artificial pinning centers (APCs), weresuccessfully introduced into high-temperature superconductors (HTS) by nanotechnology,in order to strongly pin the quantized vortices. The critical current densities,Jc, of the HTS films were dramatically improved by APCs. It is possibleto form APCs in high-quality epitaxial films, keeping the desireddimensionality, volume fraction, spatial distribution and so on. The in-fieldJc of HTS films at 77 K was improved by one order of magnitude compared with previous values usingAPCs. This technology can be applied to the coated conductor technology in progress, and a highJc has already been reported. A current outline of the research is described in this review.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
