Current transport across grain boundary networks in high-Tc superconductors

J. Mannhart, R.P. Huebener, F. Kober, D. Koelle, P. Chaudhari, D. Dimos, R. Gross, A. Gupta, G. Koren and C.C. Tsuei

Physica A: Statistical Mechanics and its Applications, 1990, vol. 168, issue 1, 345-352

Abstract: Electric transport measurements across single grain boundaries in YBa2Cu3O7 films are summarized. These experiments demonstrate that YBa2Cu3O7 grain boundaries behave like SNS-type Josephson junctions. The implications of this weak link behavior for the critical currents of polycrystalline high-Tc superconductors are discussed in conjunction with spatially resolved measurements of the current transport in polycrystalline YBa2Cu3O7.

Date: 1990
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:168:y:1990:i:1:p:345-352

DOI: 10.1016/0378-4371(90)90386-7

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