Normal-state c-axis resistivity of the high-Tc cuprate superconductors

Kumar, N. ; Pareek, T. P. ; Jayannavar, A. M. (1997) Normal-state c-axis resistivity of the high-Tc cuprate superconductors Modern Physics Letters B, 11 (8). pp. 347-352. ISSN 0217-9849

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It is shown that a strong intraplanar incoherent scattering can effectively block the interplanar coherent tunneling between the weakly coupled planes of the highly anisotropic but clean (intrinsic) materials such as the optimally doped high-Tc layered cuprate superconductors. The calculated normal-state c-axis resistivity ρc(T) then follows the metal-like temperature dependence of the ab-plane resistivity ρab(T) at high temperatures. At low enough temperatures, however, ρc(T) exhibits a non-metal like upturn even as ρab(T) remains metallic. Moreover, in the metallic regime, ρc(T) is not limited by the maximum metallic resistivity of Mott-Ioffe-Regel. This correlation between the intrinsic ρc(T) and ρab(T) is observed in the normal state of the high-Tc stoichiometric cuprates.

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Deposited On:12 Nov 2010 13:25
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