Microwave properties of YBCO crystals grown in BaZrO3 crucibles: Influenceof c-axis currents

Authors
Srikanth, H Zhai, Z Sridhar, S Erb, A
Citation
H. Srikanth et al., Microwave properties of YBCO crystals grown in BaZrO3 crucibles: Influenceof c-axis currents, J PHYS CH S, 59(10-12), 1998, pp. 2105-2109
Citations number
24
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
ISSN journal
00223697 → ACNP
Volume
59
Issue
10-12
Year of publication
1998
Pages
2105 - 2109
Database
ISI
SICI code
0022-3697(199810/12)59:10-12<2105:MPOYCG>2.0.ZU;2-
Abstract
Measurements of the ab-plane complex microwave conductivity of high quality YBa2Cu3O6.95 single crystals indicate the presence of a pairing temperatur e scale around 65 K in addition to the bulk T-c of 93.4 K. Qualitatively si milar behavior is seen for the case when microwave current flow in both ab- plane and along the c-axis. Influence of c-axis currents tends to broaden t he feature in the superfluid density around 65 K. The extracted c-axis low temperature penetration depth, lambda(c)(T), shows a linear dependence with a slope nearly 10 times larger than that of lambda(ab)(T). (C) 1998 Elsevi er Science Ltd. All rights reserved.