Abstract
In our experiments we have found that the intergrain critical transport current I c in sintered, non-oriented high- T c superconductors shows a hysteretic time relaxation behavior. As a function of prior magnetic field cycling the I c-relaxation rate ∂ c/∂ t be positive or negative with different magnitudes and can also be made to vanish. Not only I c but the whole E-I-characteristics is shifting with time. We explain these results qualitatively in the frame of a magnetic field superposition model at the grain boundaries, with our earlier measurements on the relaxation of the intragrain magnetization. This could also be of importance for superconducting electronic applications.
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
