The ab-anisotropy of twinfree YBa2Cu3O7-δ films above and below Tc

Journal article (1997)

Authors

B. Dam Vrije Universiteit Amsterdam
J. Rector Vrije Universiteit Amsterdam
R. Surdeanu Vrije Universiteit Amsterdam
R. J. Wijngaarden Vrije Universiteit Amsterdam
G. Koster University of Twente
F. Peerdeman PANalytical BV
Jurgen van Berkum Philips Research
D. G. De Groot Vrije Universiteit Amsterdam, Institute COMPAS and Faculty of Physics and Astronomy
R. Griessen Vrije Universiteit Amsterdam
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Published Date

1997

Language

English

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Abstract

High quality twin-free c-axis oriented YBa2Cu3O7-δ films were grown by pulsed laser deposition on NdGaO3. We find resistive anisotropies between 1 < ρa/ ρb < 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-δ.