Suppression of vortex channeling in meandered YBa2Cu3O7-d grain boundaries - Condensed Matter > SuperconductivityReport as inadecuate




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Abstract: We report on the in-plane magnetic field H dependence of the criticalcurrent density Jc in meandered and planar single grain boundaries GBsisolated in YBa2Cu3O7-d YBCO coated conductors. The JcHproperties of theplanar GB are consistent with those previously seen in single GBs of YBCO filmsgrown on SrTiO3 bi-crystals. In the straight boundary a characteristic fluxchanneling regime when H is oriented near the GB plane, associated with areduced Jc, is seen. The meandered GB does not show vortex channeling since itis not possible for a sufficient length of vortex line to lie within it.



Author: J. H. Durrell, D. M. Feldmann, C. Cantoni

Source: https://arxiv.org/



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