Citation
A. Pimenov et al., Universal relationship between the penetration depth and the normal-state conductivity in YBaCuO, EUROPH LETT, 48(1), 1999, pp. 73-78
Citations number
37
Categorie Soggetti
Physics
Journal title
EUROPHYSICS LETTERS
ISSN journal
02955075
→ ACNP
Volume
48
Issue
1
Year of publication
1999
Pages
73 - 78
Database
ISI
SICI code
0295-5075(19991001)48:1<73:URBTPD>2.0.ZU;2-T
Abstract
The absolute values of the conductivity in the normal state sigma(n) and of
the low-temperature penetration depths lambda(0) were measured for a numbe
r of different samples of the YBaCuO family. We found a striking correlatio
n between sigma(n) and lambda(-2) regardless of doping, oxygen reduction or
defects, thus providing a simple method to predict the superconducting pen
etration depth and to have an estimate of the sample quality by measuring t
he normal-state conductivity.