title: Metallic normal state of Y1Ba2Cu3O(7-delta)
abstract: Flux flow was studied over an entire temperature range down to T approximately 2% of T(c) by using intense pulsed current densities to overcome flux-vortex pinning. The resistivity at high vortex velocities is proportional to B and roughly follows rho approximately rho(n)B/H(c2), with a prefactor of order unity. Contrary to some speculation, rho(n) saturates to a finite residual value as T-->0, indicating a metallic (rho-->finite) rather than insulating (rho-->infinity) normal state, and the vortex dissipation continues to be conventional as T-->0.
authors.affiliation: Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA.
authors.initials: MN
authors.lastname: Kunchur
authors.initials: BI
authors.lastname: Ivlev
authors.initials: DK
authors.lastname: Christen
authors.initials: JM
authors.lastname: Phillips