| Issue |
Europhys. Lett.
Volume 48, Number 1, October I 1999
|
|
|---|---|---|
| Page(s) | 73 - 78 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1999-00116-1 | |
| Published online | 01 September 2002 | |
Universal relationship between the penetration depth and the normal-state conductivity in YBaCuO
1
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
Received:
30
April
1999
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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