Effects of the Cu-O chains on the anisotropic penetration depth of YBa2Cu4O8

Authors
Panagopoulos, C Tallon, JL Xiang, T
Citation
C. Panagopoulos et al., Effects of the Cu-O chains on the anisotropic penetration depth of YBa2Cu4O8, PHYS REV B, 59(10), 1999, pp. R6635-R6638
Citations number
26
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
59
Issue
10
Year of publication
1999
Pages
R6635 - R6638
Database
ISI
SICI code
0163-1829(19990301)59:10<R6635:EOTCCO>2.0.ZU;2-9
Abstract
The temperature, T, dependence of the magnetic penetration depth, lambda, o f grain-aligned YBa2Cu4O8 has been measured along the ab plane and c axis. Both lambda(ab)(T) and lambda(c)(T) vary as root T up to similar to 0.4T(c) implying a square-root density of states at low energy. The results are di scussed in terms of a proximity model of alternating stacked superconductin g and normal layers. [S0163-1829(99)51310-6].