Spatial variation of the critical current density in Y1Ba2Cu3O7 films

R. Gross, J. Mannhart, K. Hipler, R. P. Huebener, P. Chaudhari, D. Dimos, C. C. Tsuei, J. Schubert, U. Poppe

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The critical current density of single-, bi-, and polycrystalline Y1Ba2Cu3O7 films has been imaged by low Temperature Scanning Electron Microscopy (LTSEM) with a spatial resolution of 1/μ. Our experiments directly show that grain boundaries limit the critical current density in polycrystalline films. Substantial variatoons of the critical current density have also been found in high quality, c-axis oriented epitaxial films, which have critical current densities above 1×106A/cm2 at 77K.

Original languageEnglish
Pages (from-to)1603-1604
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Volume162-164
Issue numberPART 2
DOIs
StatePublished - Dec 1989
Externally publishedYes

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