MICROWAVE SURFACE IMPEDANCE OF YBA2CU3O7-X - S-WAVE VERSUS D-WAVE PAIRING

Authors
KLEIN N TELLMANN N WOLF SA KRESIN VZ
Citation
N. Klein et al., MICROWAVE SURFACE IMPEDANCE OF YBA2CU3O7-X - S-WAVE VERSUS D-WAVE PAIRING, Journal of superconductivity, 7(2), 1994, pp. 459-461
Citations number
14
Categorie Soggetti
Physics, Applied","Physics, Condensed Matter
Journal title
Journal of superconductivity → ACNP
ISSN journal
08961107
Volume
7
Issue
2
Year of publication
1994
Pages
459 - 461
Database
ISI
SICI code
0896-1107(1994)7:2<459:MSIOY->2.0.ZU;2-R
Abstract
The low temperature behavior of the microwave surface resistance R(s) and the penetration provides information on the pairing state. Fully o xygenated films with low dc-resistivity in the normal state exhibit an exponential temperature dependence corresponding to values of the ene rgy gap up to 10 meV. For oxygen deficient films a linear R(s)(T) was observed, similar to single crystals. This can be explained qualitativ ely by induced superconductivity in the copper-oxygen chains.