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Universal c-axis conductivity of high-$T_c$ oxides in the superconducting state | | T. Xiang
; W. N. Hardy
; | | Date: |
31 Dec 1999 | | Subject: | Superconductivity; Strongly Correlated Electrons | cond-mat.supr-con cond-mat.str-el | | Abstract: | The anisotropy in the temperature dependence of the in-plane and c-axis conductivities of high-T_c cuprates in the superconducting state is shown to be consistent with a strong in-plane momentum dependence of both the quasiparticle scattering rate and the interlayer hopping integral. Applying the cold spot scattering model recently proposed by Ioffe and Millis (Phys. Rev. B {f 58}, 11631 (1998)) to the superconducting state, we find that the c-axis conductivity varies approximately as T^3 in an intermediate temperature regime, in good agreement with the experimental result for optimally doped YBa_2Cu_3O_{7-x} and Bi_2Sr_2CaCu_2O_{8+x}. | | Source: | arXiv, cond-mat/0001443 | | Services: | Forum | Review | PDF | Favorites | |
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