Interlayer conductivity in the superconductor Tl2Ba2CuO6+delta: Energeticsand energy scales

Authors
Katz, AS Woods, SI Singley, EJ Li, TW Xu, M Hinks, DG Dynes, RC Basov, DN
Citation
As. Katz et al., Interlayer conductivity in the superconductor Tl2Ba2CuO6+delta: Energeticsand energy scales, PHYS REV B, 61(9), 2000, pp. 5930-5933
Citations number
36
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
10980121 → ACNP
Volume
61
Issue
9
Year of publication
2000
Pages
5930 - 5933
Database
ISI
SICI code
1098-0121(20000301)61:9<5930:ICITST>2.0.ZU;2-Y
Abstract
We report on infrared studies of the c-axis electrodynamics of Tl2Ba2CuO6+d elta crystals. A sum-rule analysis reveals spectral weight shifts that can be interpreted as a kinetic energy change at the superconducting transition . In optimally doped crystals, showing an incoherent normal-state response, the kinetic energy is lowered at T<T-c, but no significant change is found in the overdoped samples, which have more coherent conductivity at T>T-c.