Superconducting fluctuations in the high-temperature superconductors: Theory of the dc resistivity in the normal state

Y. B. Xie

doi:10.1103/PhysRevB.46.13997

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Superconducting fluctuations in the high-temperature superconductors: Theory of the dc resistivity in the normal state

Y. B. Xie

DOI 10.1103/PhysRevB.46.13997 · Physical Review B

T1

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Abstract

By assuming that the mean-field transition temperature Tm is higher than the superconducting transition temperature Tc, and that the scattering between the electrons and impurities is important, we crudely estimate the electric conductivity σab in the ab plane and σc along the c direction in the high-temperature superconductors. Since the coherence length along the c direction is unusually short, a metallic temperature dependence of σab and a nonmetallic behavior of σc are obtained and their magnitudes are found to be consistent with the experimental data.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Bi2Sr2CaCu2O6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown