Magnetization Losses in Multiply Connected YBa2Cu3O6+x Coated Conductors

Details Magnetization Losses in Multiply Connected YBa2Cu3O6+x Coated Conductors Magnetization Losses in Multiply Connected YBa2Cu3O6+x Coated Conductors

2005-10-21

arxiv.org/abs/cond-mat/0510593v1

Physics

Condensed Matter

Superconductivity

19 pages, 12 figures to be published in J. Appl. Phys

Scientific paper

10.1063/1.2139832

We report the results of a magnetization losses study in experimental multifilament, multiply connected coated superconductors exposed to time-varying magnetic field. In these samples, the superconducting layer is divided into parallel stripes segregated by non-superconducting grooves. In order to facilitate the current sharing between the stripes and thus increase the reliability of the striated conductors, a sparse network of superconducting bridges is superimposed on the striated film. We find that the presence of the bridges does not substantially increase the magnetization losses, both hysteresis and coupling, as long as the number of bridges per length of the sample is not large. These results indicate that it is possible to find a reasonable compromise between the competing requirements of connectivity and loss reduction in an ac-tolerant version of the high temperature coated conductors specifically designed for ac power applications.

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