A reply to the comment on mechanical measurement or flux-lattice melting in single crystal Hi-C copper oxide superconductors is presented. Dissipation arises from the motion of the flux lines relative to the cry- stal via Stephen-Bardeen mechanism ,as the flux lines depin. (AIP)

• Received 4 January 1989

DOI:https://doi.org/10.1103/PhysRevLett.62.2331