Volume 48, Number 1, October I 1999
|Page(s)||73 - 78|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
Universal relationship between the penetration depth and the normal-state conductivity in YBaCuO
Institut für Physik, Universität Augsburg - 86135 Augsburg, Germany
2 Institut für Physik, Universität Mainz - 55099 Mainz, Germany
3 Institute of General Physics, Russian Academy of Sciences - 117942 Moscow, Russia
Accepted: 26 July 1999
The absolute values of the conductivity in the normal state and of the low-temperature penetration depths were measured for a number of different samples of the YBaCuO family. We found a striking correlation between and regardless of doping, oxygen reduction or defects, thus providing a simple method to predict the superconducting penetration depth and to have an estimate of the sample quality by measuring the normal-state conductivity.
PACS: 74.25.-q – General properties; correlations between physical properties in normal and superconducting states / 74.25.Fy – Transport properties (electric and thermal conductivity, thermoelectric effects, etc.) / 74.76.Bz – High-Tc films
© EDP Sciences, 1999
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