Abstract
The emergence and the evolution of the metallic charge transport in the system from lightly to optimally doped samples ( ) are studied. We demonstrate that in high-quality single crystals the in-plane resistivity shows a metallic behavior for all values of at moderate temperatures and that the hole mobility at 300 K changes only by a factor of 3 from to 0.17, where its dependence is found to be intriguingly similar to that of the inverse antiferromagnetic correlation length. We discuss an incoherent-metal picture and a charged-stripe scenario as candidates to account for these peculiar features.
- Received 22 January 2001
DOI:https://doi.org/10.1103/PhysRevLett.87.017001
©2001 American Physical Society