Charge confinement on the CuO2 planes in slightly overdoped YBa2CU3O7-delta and the role of metallic chains

Citation
Ne. Hussey et al., Charge confinement on the CuO2 planes in slightly overdoped YBa2CU3O7-delta and the role of metallic chains, PHYS REV B, 61(10), 2000, pp. R6475-R6478
Citations number
32
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
1098-0121 → ACNP
Volume
61
Issue
10
Year of publication
2000
Pages
R6475 - R6478
Database
ISI
SICI code
1098-0121(20000301)61:10<R6475:CCOTCP>2.0.ZU;2-9
Abstract
We have probed the origin of the metallic c-axis transport in slightly over doped YBa2CU3O7-partial derivative (partial derivative approximate to 0.05) via measurements of the normal-state c-axis magnetoresistance (MR). An orb ital contribution to the transverse MR, a signature of coherent band motion , arises only from the component of the magnetic field perpendicular to the CuO chains. This result implies that the chains are primarily responsible for coherent c-axis transport in YBa2CU3O7-partial derivative and that thos e regions of the CuO2 planes not hybridized with the chains remain effectiv ely two dimensional, even in the absence of a normal-state gap.