The ab-anisotropy of twinfree YBa2Cu3O7-delta above and below Tc

B. Dam, J. Rector, R. Surdeanu, R.J. Wijngaarden, Gertjan Koster, F. Peerdeman, J. van Berkum, D.G. de Groot, R. Griessen

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High quality twin-free c-axis oriented YBa2Cu3O7 films were grown by pulsed laser deposition on NdGaO3. We find resistive anisotropies between 1 < a/b < 1.6. The resistive anisotropy above Tc appears to be correlated to the anisotropy in the critical current below Tc. The normal state properties of the chains along b seem to have a significant influence on the superconducting properties of YBa2Cu3O7.
Original languageUndefined
Pages (from-to)665-666
Number of pages2
JournalPhysica C
Issue numberc287
Publication statusPublished - 1998


  • METIS-128368
  • IR-23569

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