Title: 1D quantum transport in the even-chain spin-ladder compound Sr2.5Ca11.5Cu24O41 and YBa2Cu4O8
Authors: Moshchalkov, Victor
Trappeniers, Lieven
Vanacken, Johan #
Issue Date: Apr-1999
Publisher: E d p sciences
Series Title: Europhysics letters vol:46 issue:1 pages:75-81
Abstract: The temperature dependence of the resistivity rho(T) of the novel Sr2-5Ca11.5Cu24O41 ladder compound under hydrostatic pressure of up to 8 GPa has been explained by assuming that the relevant length scale for electrical transport is given by the magnetic correlation length related to the opening of a spin-gap in a 1D even-chain spin-ladder (1D-SL). The pressure dependence of the gap was extracted by applying this model to rho(T) data obtained at different pressures. The rho(T) dependence of the underdoped cuprate YBa2Cu4O8 demonstrates a remarkable scaling with the rho(T) of the 1D-SL compound Sr2.5Ca11.5Cu24O41. This scaling: implies that underdoped cuprates at T-c < T < T* ase in the 1D regime and their pseudo-gap below T* is the spin-gap in the even-chain 1D-SL formed at T < T* in these materials.
ISSN: 0295-5075
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science