Abstract
The charge and spin dynamics in PrBa2Cu4O8 are investigated by means of transport and Cu NMR measurements. The magnetoresistance was found to be very small at high temperatures and increase rapidly with decreasing temperature below ∼100 K, which may be ascribed to the dimensional crossover from one to two dimensions in the charge transport in the CuO double chains. While the NMR signal from the chain Cu sites persists down to 4.2 K without any appreciable line broadening, the signal from the planar Ce sites disappears below ∼250 K indicating the long-range antiferromagnetic order of plane Cu moments. This is consistent with the view of metallic conduction along the quasi one-dimensional CuO chains.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
N. Seiji, S. Adachi and H. Yamauchi,Physica C 277, 377 (1994); Y. Yamada et al,Physica C 231, 131 (1994).
Y. Yamada et al,unpublished.
I. Terasaki et al.,Submitted to Phys. Rev. B.
M. Takigawa et al.,Phys. Rev. B 39, 300 (1989).
H. Zimmermann et al.,Physica C 159, 681 (1989).