An alternative normal state c-axis resistivity model for high-Tc superconductors

An alternative model for c-axis resistivity in layered high-T-c crystalline superconductors is proposed and has been characterized as an essentially two-dimensional Fermi liquid. Average ionization energy is included as an additional parameter that determines the concentration of tunneling electrons between Cu-O-2 layers. This model agrees well quantitatively with the Bi2212 and Y123 single crystals, and qualitatively with the pure 1212 phase polycrystals. (C) 2001 Elsevier Science B.V. All rights reserved.